158 Rubber-bonded grinding tools. 86 Compounds and fluids. 174 Grinding and polishing stones. 106 Felts and cloths. 214 Ceramic-fibre tools

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1 . Grinding and polishing tools 86 Compounds and fluids 158 Rubber-bonded grinding tools 174 Grinding and polishing stones 106 Felts and cloths 14 Ceramic-fibre tools 116 Lapping tools 130 Polishing brushes and wheels 4 Emery and fleece tools 14 Grinding points 6 Ultrasonic tools 80 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

2 . Grinding and polishing tools Grinding and polishing tools Overview Compounds and fluids 86 JOKE Magic diamond compound system 86 Hyprez diamond compounds 96 Lapping, polishing and grinding compounds 104 Felts and cloths 106 Polishing felts on shank 106 Polishing felts, stick-on 111 Brass filament polishing felts 11 Felt discs 113 Felt sticks and felt sheets 114 Polishing cloths 115 Lapping tools 116 Lapping and polishing tools made of wood 116 Lapping and polishing rings and tools 119 HELICAL LAP lapping tools 16 Polishing brushes and wheels 130 Fleece polishing wheels 131 Polishing brushes and wheels 13 HABRAS polishing brushes and discs 136 Pipe brushes 138 Nylon honing brushes 140 Grinding and polishing stones 174 JOKE grinding and polishing stones 176 Gesswein grinding and polishing stones 179 Boride grinding and polishing stones 190 Grinding and polishing stone holders 1 Ceramic-fibre tools 14 Ceramic-fibre abrasive files 14 Ceramic-fibre tools on shank 1 Emery and fleece tools 4 Abrasive sleeves and caps 4 Flap wheels 31 Nylon cut-off wheels and cup wheel discs 40 Abrasive discs 4 Tools for JOKE Multimaster 48 Abrasive sheets, strips and bands 50 Ultrasonic tools 6 Diamond tools for ultrasonic systems 6 Ruby stones 65 Wooden and brass sticks 65 Tool holders and adapters 66 Grinding points 14 Grinding points on shank 14 Accessories for grinding workplaces 144 Rubber-bonded grinding tools 158 Rubber-bonded grinding and polishing points 158 Fibre-laminated abrasives 16 CRATEX tool assortment Grinding and polishing tools Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 81

3 . Grinding and polishing tools Grinding and polishing tools Basic principles Ñ Finest working processes in tool and mould making The border between grinding and polishing is not clear-cut and a clear distinction often difficult. Generally, three processes for the fine processing of surfaces can be identified: polishing, polishing and lapping and lapping, all of which are chipping processes with loose grit. These achieve the best roughness values (see page 84). The surface quality achieved with these processes is mainly dependent on the following factors: Tool Lapping compound Grit size of the abrasive Working pressure Work movement Grading of the various abrasives Choice of lapping and polishing agent carrier Lapping Workpiece Ñ Grinding In the preliminary processing, these finest working processes (finishing) are often preceded by (manual) grinding. Grinding is a chipping process with fixed grain. See right for an overview of typical abrasives. Carrier Lapping compound Workpiece Lapping and polishing/ polishing i Overview of work processes in tool and mould making Manual grinding Polishing Lapping Lapping and polishing Definition Process Result Chipping process with fixed grain Chipping process with loose grain Directional movement, material is chipped by fixed grain Directional or undirectional, grain embedded in polishing cloth or felt Undirectional crossing movement, rolling grain Directional or undirectional movement, grain penetrates carrier Directional surface High-gloss surface Matt surface Shiny surface Basic principles that should be adhered to: Always from coarse to fine Clean workpiece thoroughly after every grit change Change lapping or polishing media when changing grit 8 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

4 . Grinding and polishing tools Grinding and polishing tools Basic principles In theoretic definitions, abrasives are all hard material grains, which are used to achieve stock removal. These are usually applied bound in grinding tools. A differentiation is made between natural grains such as quartz, corundum, emery, garnet and natural diamond and synthetic grains such as corundum, silicon carbide, chromium oxide, cubic boron nitride (CBN) and diamonds. Ñ Corundum (aluminium oxide AI O 3 ) The most widely used abrasive is classed according to its hardness and toughness: Regular aluminium oxide: consists of ca. 95 % AI O 3 predominantly from non-alloy and low alloyed steels as well as cast steel and grey cast iron. Special fused aluminium oxide: Thanks to a 99.9% AI O 3 very hard and heat resistant up to,000 C. Very suitable for tough unhardened steels of more than 60 HRC (tool steel), for working with glass and all steels that require cool grinding. Semi corundum: Mixture of the above. For steels with high hardness and toughness, which are not heat-sensitive. Ñ Silicon carbide Silicon carbide can be differentiated by its hard and sharp crystals. It is heat-resistant up to ca. 1,370 C. An abrasive grain generally only consists of one or a few crystals. This material is harder and more brittle than corundum. Silicon carbide is mainly used on nonferrous metals, rust-free steels, ceramic and mineral materials such as carbonaceous steels. It is also used for dressing grinding tools. Ñ Boron nitride Boron nitride is the second-toughest known material after diamond. It is only suitable as an abrasive in its cubic crystal shape (CBN). It is produced synthetically from natural reserves of hexagonal crystalline boron nitride and is usually bound in resin or ceramic. It has a heat resistance of ca. 1,300 C, from ca. 730 C, it becomes even harder than diamond! It is used predominantly for grinding tough unhardened steels such as high-speed steel as well as hot- and cold-work steel. Not suitable for soft steels, tungsten carbides, nonferrous metals, chrome and nickel coatings as well as non-metals. Ñ Diamond The diamonds used in modern technology are almost exclusively synthetic. The hardness and geometries for specific applications achieved are superior to those of natural diamonds. Even as the hardest known material, diamonds are only heat-resistant up to 800 C and their scope of application is therefore somewhat limited. Diamond tools are mainly used for precision grinding on tungsten carbide, grey cast iron, glass, ceramic, porcelain, fire-proof stones, germanium, graphite, cutting ceramics, silicon, rubber, non-ferrous heavy metal, cementite alloys, nickel and chrome alloys, ball bearing steel, tool steels with high carbon and low vanadium content. Manual grinding i Abrasive hardness according to Knoop Diamond 6000 Cubic boron nitride (CBN) 4700 Boron carbide 800 Silicon carbide 480 Corundum 050 Zirconium aluminium oxide 1800 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 83

5 . Grinding and polishing tools Surface roughness Ñ Overview of the surface roughness of the preliminary processing methods and the different grinding medium grit sizes in linear processing When selecting the correct grit size, a surface improvement by 1.5 roughness classes (coarse surfaces) to 0.5 roughness classes (fine surfaces) should be taken into account. The tips of the wedges of preliminary processing are max. attainable values under good working conditions. The stock removal dimensions are usually higher than the absolute surface roughness (errors in the macro form and removal of the erosion skin). It may therefore be advisable to begin with a coarser grit size. N8 N7 N6 N5 N4 Degree of roughness VDI 18 VDI 1 Grinding VDI 4 Turning Milling Diamond tools with galvanic bonding D181 D16 D91 D54 D46 D30 D15 Abrasive files with ceramic bonding K10 K180 K0 K30 K400 K600 Abrasive files with synthetic resin bonding K10 K180 K0 K30 K400 Ceramic fibre abrasive files Light brown orange dark brown blue Abrasive cloths P40 P80 P10 P180 P0 P30 P400 P600 Surface roughness Ra Abrasive paper P10 P180 P0 P30 P μ 80μ 60μ 40μ Grinding film Diamond compound with lapping wood 45μ 3, 1,6 0,8 0,4 0, N3 K600 white P800 P600 30μ 5μ 0,1 P800 N red P1000 P100 15μ 14μ 0,05 N1 9μ 8μ 6μ 0,05 Ñ Surface roughness in mould building Ra In by far the most cases, the surface roughness is indicated as an Ra value. The height root mean square surface finish Ra is the height of the fictitious surface over the midline, the magnitude of which corresponds to the sum of the individual surfaces above and below. The visual appearance may markedly deviate from the indication of the Ra value: e.g. smaller Ra value with visible isolated scratches. Ra Lm = measuring section Rt The Rt value is considerably more meaningful for assessment of very fine surface finishes in mould making: the maximum peak-to-valley height Rt is the vertical distance between the highest and lowest point within the measuring section. For surface roughness indications in this catalogue, the maximum peak-to-valley height Rt is generally used. Roughness classes The roughness classes according to DIN/ISO 130 are indicated as Ra values. The Rt values listed in the table are estimated values that are not contained in the standard. The ratio Ra:Rt corresponds to approx. 1:8 to 1:1 during manual working. As a result of the evenness of manual working and also less pressure and good lubrication, the ration Ra:Rt can be reduced to 1:6. All the values indicated in this catalogue are empirically determined on steel with 53 HRC and represent nonbinding guideline values. Rt Lm = measuring section Roughness classes according to DIN/ISO 130 Degree of Roughness Roughness roughness No. value Ra (μm) value Rmax (μm) N 1 50 ~ 500 N 11 5 ~ 50 N ~ 15 N ~ 60 N N N N N N N N Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

6 . Grinding and polishing tools Sample plate Ñ The sample plate There is currently no standardisation for polishing jobs. This is why we, in cooperation with the polishing professionals at Aro-Tec ( in Kierspe, have developped a sample plate, which illustrates the 30 steps to high-gloss finish. The plate provides information on the roughness and gloss level for each production step. Grinding stroke finish Grinding and polishing stone High-gloss polishing Step Roughness Step Roughness Step Roughness 1 80 grinding stroke Gloss level: 17.0 % 10 grinding stroke Gloss level: 1.0 % grinding stroke Gloss level: % 4 0 grinding stroke Gloss level: % 5 30 grinding stroke Gloss level: 4.50 % grinding stroke Gloss level: 3.10 % grinding stroke Gloss level: 6.0 % grinding stroke Gloss level: % grinding stroke Gloss level: % grinding stroke Gloss level: 5.70 % Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Order no less peek stone with hand-filing machine Gloss level: 1.50 % 1 0 stone with hand-filing machine Gloss level: 1.90 % stone with hand-filing machine Gloss level: % stone with hand-filing machine Gloss level: 16.0 % stone with hand-filing machine Gloss level: 18.0 % stone with hand-filing machine Gloss level: % stone with hand-filing machine Gloss level: % High-gloss polishing Step emery bare Gloss level: % emery bare Gloss level: % Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Emery bare Roughness Ra 0.6 R3z 1.00 Rt.10 Ry 1.80 Rz 1.70 Ra R3z Rt Ry Rz 0.19 Emery bare Very hard brush 5 µ Gloss level: % 1 Hard brush 15 µ Gloss level: % Hard brush 6 µ Gloss level: % 3 Soft brush 3 µ Gloss level: % 4 Disks 5 µ Gloss level: 5.80 % 5 Disks 15 µ Gloss level: % 6 Disks 6 µ Gloss level: % 7 Bare 45 µ Gloss level: % 8 Bare 15 µ Gloss level: % 9 High-gloss 6 µ Gloss level: 61.0 % 30 High-gloss 3 µ Gloss level: % Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz Ra R3z Rt Ry Rz less peek less peek Emery bare Emery bare Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 85

7 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compound polishing system Ñ JOKE Magic enables you to polish all types of steel, tungsten carbide, and ceramics non-ferrous metals and aluminium - in just five steps! Ñ Everyone knows that many roads lead to Rome and there are just as many to the polishing result you want. Wouldn t it be nice to have a system that has been carefully devised to make sure you get the same high-gloss finish on the workpiece every time? A system for achieving reproducible results on all types of steel, as well as on tungsten carbides, ceramics, nonferrous metals and aluminium? Welcome to JOKE Magic! JOKE Magic saves time because its components make sure you attain smoother surfaces quicker without orange peel effect or excavations. With JOKE Magic you polish in five logical steps. Steel Steel JOKE Magic Totally even surface Standard Uneven surface causes later blotching JOKE Magic saves money because you achieve your goal using less material. All its components give you the best results with maximum visual effects and longer life. Polishing without breakouts Breakouts in material JOKE Magic just does it better see for yourself what JOKE Magic can do. It s time to switch! Aluminium All alloy components stay clean Silicon torn out 86 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

8 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compound polishing system Diamond compounds Super-fine polishing suspensions Polishing felts Polishing cloths Lapping tools Polishing blocks Grinding stones Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 87

9 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compound polishing system Diamond compounds Magic diamond compounds Magic diamond compounds were specially designed for the new types of steel that tools are manufactured in. They are either used neat or in conjunction with two drops of diamond fluid placed on the various polishing hosts, such as Magic LAP, Magic POL, Magic Polishing Felt and Magic polishing cloths. The advantage: Magic diamond compounds adhere very well to the polishing hosts and therefore 100% of the material acts on the workpiece. Normally, diamond compounds must be used with a large amount of fluid. Using a large amount of fluid, however, has the effect of making the diamond compound runny, so that a lot of it is simply projected away during polishing. Only a very small percentage of the diamond compound actually gets to work on the workpiece: runny diamond compound causes breakouts. Magic diamond compounds are biodegradable and have a virtually unlimited shelf life. The even, agglomerate-free distribution of diamonds within Magic diamond compounds effectively creates a precisely calibrated, blocky diamond grit, which guarantees top-quality polishing. Our Magic diamond compounds achieve an incomparably high level of stock removal. They are good for unlimited use on all grades of steel, tungsten carbides and ceramics. For special use on aluminium and all nonferrous metals, you have JOKE Magic-ALU diamond compounds, while in addition, for all types of plastics use, you have JOKE Magic plastic super-fine polish. Magic diamond compounds can be used on all host materials with either rotating, linear or ultrasonic drives. Lapping tools Magic LAP lapping tools Lap faster - through stock removal. This means higher quality without orange peel effect or excavation of tungsten carbides and slag. To get these results, the composition of Magic LAP lapping tools and was modified in relation to conventional standard products, so that it no longer clogs during the lapping and polishing process and so doesn t cause rat marks on the workpiece. All this goes together an extremely long life span, so that lapping tools need be dressed significantly less often. Also, significantly less time is needed for the subsequent polishing. (The lapping tools comparison on the following page shows you just what distinguishes Magic LAP lapping tools from standard equipment) Polishing blocks Magic POL polishing blocks A superior alternative to linear polishing with plastic applicators. JOKE Magic POL are newly developed polish applicators made out of wood that are especially impregnated. This impregnation guarantees a perfectly even surface, because whenever Magic POL blocks are used during the polishing process, the diamond grits cut accurately without rolling. This is why no write marks are created during the work process. Magic diamond constantly supplies the Magic POL polishing block with moisture, ensuring the best possible polishing action right up until it has been totally used up. 88 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

10 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compound polishing system Polishing felts Magic polishing felts A newly developed special impregnation technique ensures you get the best polishing results when using Magic polishing felts. It means you get less moisture absorption than with normal felts, which enables the diamonds to provide their best cutting performance. JOKE Magic polishing felts have a wavy surface and are not impregnated, yet they need up to 40% less diamond compound than normal felts. Their precise, smooth surface creates a rapid, even surface on the material being worked and consistently prevents dimpling. A barrier located on the rear side of the felts prevents the ingress of liquid adhesive whenever the felts are glued to the rubber holders. It also prevents the felts from being affected by the adhesive and the adhesive from softening due to the polish used on the felts. Grinding stones Magic STONES grinding stones A complete system incorporating grinding stones for pretreatment purposes. The fixed connection to the connecting rod (click system) ensures that no edging takes place whenever the Magic STONES are fitted, which prevents the rat marks usually created otherwise. The spherical pressure load ensures that grinding is vibration-free and leads to a totally even grinding result. The Magic STONES guarantee that the subsequent steps in the process can be carried out error-free. Polishing cloths JOKER, FINAL and SHINE Magic polishing cloths The universal polishing cloths for polishing aluminium and all grades of steels. They can be used on 99 % of materials. The cushioning base layer in these cloths means that they are very quiet to use and leave no score marks on the material. Breakouts and dimpling are prevented. Suspension Magic super-fine polishing suspension Magic super-fine polishing suspension with combined anti-corrosion power gives workpieces that final, brilliant gloss. This thin suspension and the blocky, agglomerate-free diamonds it contains enables totally scratch-free polishing. If necessary, you can use the super-fine polishing suspension together with the Magic Clean cloth to remove any shadows created during final polishing. Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 89

11 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compound polishing system i Lapping tools compared Brass Standard Magic LAP Much deformation during lapping The subsequent polishing process is very lengthy and requires a second step with plastic. Orange peel effect Much deformation during lapping Plastic quickly clogs up. Tungsten carbide and slags are ripped out. Orange peel effect Pitting Little deformation during lapping The subsequent polishing process is very quick. No orange peel effect No excavations The diamond compound is projected away from the brass lapping tool. Results in a wavy surface with small excavations. Diamond compound collects in the hollow spaces of agglomerates and gives rise to scratches and breakouts. The quick clogging of lapping tool. gives rise to scratches and breakouts. Diamonds cut evenly, thereby ensuring maximum flatness. Inclusions remain clean Long time to work, before the Magic LAP lapping tools get clogged up Extremely long service life. For general surfaces use (because of their uniform distance to centre) either the round or square Magic LAP lapping tool. For corners, the Magic LAP lapping tool is ideal. 90 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

12 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compounds JOKE Magic diamond compound, water soluble and alcohol soluble Content Grit size Concentration Order No. 9 pieces 6 pieces 3 pieces Our best-selling diamond compound. Specially designed for the new types of steel that tools are manufactured in. To be used neat or with just two drops of diamond fluid. Normally, diamond compounds must be used with a large amount of fluid. Using a large amount of fluid, however, has the effect of making the diamond compound runny, so that a lot of it is simply projected away during polishing. JOKE Magic diamond compound effectively creates a precisely calibrated, blocky diamond grit, which guarantees top-quality polishing. The result is an incomparably high level of removal on all materials: From soft aluminium to the hardest ceramics as well as for unlimited use on all grades of steel and tungsten carbides. 10 g 0,5 µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong g 0,5 µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong Dispo price * Call us! Dispo price * Call us! 70 µm extra-strong g 0,5 µm high µm high µm high µm high µm high µm high µm high µm high µm high Dispo price * Call us! i * Loyalty has its rewards: The JOKE dispo price Are you buying diamond compounds in large volumes? If so, then Dispo-Price is just what you need! Get in touch with us and we will give you a special price for your compound requirements. Please get in touch with Peter Grünewald to find out more about the JOKE Magic dispo price: Tel. +49 (0) 04 / p.gruenewald@joke.de 91

13 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic WS diamond compounds NEW! JOKE Magic WS diamond compound, water soluble and alcohol soluble The compound you need to achieve very high gloss effects. Fantastic with high-speed steels! Content Grit size Concentration Order No. 9 pieces 10 g 1 µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong Dispo price * Call us! 6 pieces 3 pieces * For further details on discount price, see page 91 JOKE Magic US diamond compounds JOKE Magic US diamond compound, universally soluble Very good heat resistance (up to 100 C), therefore best suited to hot tools etc. Very workable. Content Grit size Concentration Order No. 9 pieces 10 g 1 µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong Dispo price * Call us! 6 pieces 3 pieces * For further details on discount price, see page 91 JOKE Magic ALU diamond compounds JOKE Magic ALU diamond compound water soluble and alcohol soluble Special compound for aluminium and all non-ferrous metals. Can be used on all host materials, in either a rotating or a linear motion. Content Grit size Concentration Order No. 9 pieces 10 g 1 µm extra-strong µm extra-strong µm extra-strong µm extra-strong µm extra-strong Dispo price * Call us! 6 pieces 3 pieces * For further details on discount price, see page 91 9 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

14 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond fluids JOKE Magic diamond fluids Content Order No. Price JOKE Magic diamond fluid, oil soluble 500 ml JOKE Magic diamond fluid, oil soluble 10 litres JOKE Magic ALU diamond fluid, water soluble and alcohol soluble 500 ml Specially for JOKE Magic ALU diamond compounds, with 100 % corrosion protection JOKE Magic suspensions JOKE Magic super-fine polishing suspensions Grit Content Order No. Price JOKE Magic super-fine polishing suspension 1 µ 500 ml water soluble and alcohol soluble, with anti-corrosion power JOKE Magic super-fine diamond polishing suspension 3 µ 500 ml water soluble and alcohol soluble, with anti-corrosion power JOKE Magic super-fine diamond polishing suspension 6 µ 500 ml water soluble and alcohol soluble, with anti-corrosion power JOKE Magic super-fine diamond plastic polishing medium 1 µ 500 ml specially developed for polishing plastics JOKE Magic super-fine diamond plastic polishing medium 1 µ 50 ml specially developed for polishing plastics Dispensing Bottle Order No. Price Dispensing bottle, 50 ml Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 93

15 . Grinding and polishing tools Ñ.1. Compounds and fluids JOKE Magic diamond compound polishing system All components at a glance NEW! JOKE Magic polishing felts, non-self adhesive, pack content: 10 pieces Shape Hardness Order No. 5 packs 1 pack For the final high gloss, with impregnation and barrier layer on rear for adhesion Ring Ø 30 / 1 x 4 Standard Rectangular 100 x 30 x Standard Square 90 x 90 x Standard JOKE Magic polishing cloths, self-adhesive, pack content: 50 pieces Type Packing unit Order No. Price per pack Magic JOKER Ø 0 x 1 50 pieces Ø 3 x 1 50 pieces x 11.5 x 1 50 pieces Magic FINAL Ø 0 x 50 pieces Ø 3 x 50 pieces x 11.5 x 50 pieces Magic SHINE Ø 18 x 50 pieces Ø 30 x 50 pieces x 11.5 x 50 pieces Supports for felts and cloths Order No. Price Rubber holder Ø Rubber holder Ø Tool holder 9 x Toggle rod for tool holder JOKE Magic clean polishing cloths Order No. Price For wiping after polishing and for application of JOKE Magic super-fine polishing suspension Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

16 . Grinding and polishing tools Ñ.1. Compounds and fluids NEW! JOKE Magic diamond compound polishing system All components at a glance JOKE Magic POL polishing blocks Design Packing unit Order No. 10 packs Rectangular* 7 x 9 x 5 10 pieces Rod* 7 x 9 x Rod 5 x 5 x pieces Rod 8 x 8 x pieces Rod 10 x 10 x pieces * with special impregnation! 1 pack JOKE Magic LAP lapping tools Design Packing unit Order No. 10 packs Lapping tool 4 x 4 x 4 10 pieces x 6 x 4 10 pieces Ø 6 x 4 10 pieces x 8 x 8 x 4 10 pieces pack Lapping stick 4 x 4 x pieces x 8 x pieces x 8 x 8 x pieces JOKE Magic STONES grinding and polishing stones Grit size Colour Packing unit Order No. Pack Price 7 x 9 x 4 0 rot 10 pieces x 9 x 4 30 yellow 10 pieces x 9 x green 10 pieces x 9 x blue 10 pieces Spherical connecting rods Order No. Price Spherical connecting rod for Magic LAP Spherical connecting rod for Magic STONES/POL Rudolfix 333 adhesive, 100 g tube Order No. 10 packs For fixing polishing felt rings to rubber supports pack Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 95

17 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez diamond compounds Ñ Hyprez diamond compounds The diamonds Our HYPREZ diamond compounds contain only special, tested and approved diamonds, ( Advanced Technology Diamonds ) from brand manufacturers. They are selected with the greatest care for their size, purity and shape. The diamonds are very pressure-resistant and stay aggressive for as long as it s needed. Decades of use of HYPREZ diamond products in industrial mould-making as well as electronics and nanotechnology demonstrate that these products can meet the toughest requirements. The host material The host material will not separate from the diamond content and does not dry out. Its compatibility with the various solvents and the solvability of the compounds is also monitored closely. i All JOKE Hyprez diamond compounds at a glance F Versatile compound S Economy compound W Eco-compound OS Oil-soluble compound L for hard cases The widest and most varied range of concentrates. Developed for simple, cost-effective jobs. Water-based W compound developed for environmentally friendly and oil-sensitive jobs. The ideal compound for high materials removal requirements. Especially for working on tungsten carbide, ceramics and hardened steel. Continuity thanks to quality HYPREZ compounds deliver consistent, optimum polishing results and offer a very long service life. The production process, which is continually improved and checked, ensures that their extremely high quality really lasts. Super L finishing compound C11 Stabilised compound Finest grits for finishing harened steel and ceramics. The best compound for direct use on hot moulds or standing walls. Special host material providing optimum tool adhesion. 96 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

18 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez F diamond compounds Hyprez F diamond compounds, oil and water soluble Grit size Content Concentration Colour Type Order No. 9 pieces 6 pieces 3 pieces For maximum flexibility, the JOKE HYPREZ F series offers both water and oil soluble hosts and a large selection of diamond concentrates. 5 g in Hyplicator or 10 g spray. 5 g 0.10 µm strong grey 1/10-F µm strong grey 1/4-F µm weak blue 1-F µm strong blue 1-F µm extra-strong blue 1-F µm medium green 3-F µm strong green 3-F µm extra-strong green 3-F µm medium yellow 6-F µm strong yellow 6-F µm extra-strong yellow 6-F µm medium red 8-F µm strong red 8- F µm medium brown 14-F µm strong brown 14-F µm extra-strong brown 14-F µm medium mahagony 5-F µm strong mahagony 5-F µm medium purple 45-F µm strong purple 45-F µm extra-strong orange 60-F g 0,10 µm strong grey 1/10-F ,5 µm strong grey 1/4-F µm weak blue 1-F µm strong blue 1-F µm extra-strong blue 1-F µm medium green 3-F µm strong green 3-F µm extra-strong green 3-F µm medium yellow 6-F µm strong yellow 6-F µm extra-strong yellow 6-F µm medium red 8-F µm strong red 8-F µm medium brown 14-F µm strong brown 14-F µm extra-strong brown 14-F µm medium mahagony 5-F µm strong mahagony 5-F µm medium purple 45-F µm strong purple 45-F µm extra-strong orange 60-F Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 97

19 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez S diamond compounds Hyprez S diamond compounds, oil and water soluble Content Grit size Concentration Colour Order No. 9 pieces 6 pieces 3 pieces This compound consists of Advanced Technology diamonds which are used in more economical doses than F series compounds, for example. They are ideal for simple, economical uses. 10 g 1 µm medium blue µm medium green µm medium yellow µm medium red µm medium brown µm medium mahagony µm medium purple g 1 µm medium blue µm medium green µm medium yellow µm medium red µm medium brown µm medium mahagony µm medium purple Hyprez W diamond compounds Hyprez W diamond compounds, water soluble Grit size Content Concentration Colour Type Order No. 9 pieces 6 pieces 3 pieces Water soluble compound for environmentally friendly and oil-sensitive jobs. 5 g 1 µm strong blue 1-W µm extra-strong blue 1-W µm medium green 3-W µm extra-strong green 3-W µm weak yellow 6-W µm extra-strong yellow 6-W µm medium brown 14-W g 1 µm strong blue 1-W µm extra-strong blue 1-W µm medium green 3-W µm extra-strong green 3-W µm weak yellow 6-W µm extra-strong yellow 6-W µm medium brown 14-W Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

20 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez OS diamond compounds Hyprez OS diamond compounds, oil soluble Grit size Content Concentration Colour Type Order No. 9 pieces 6 pieces 3 pieces This oil-based compound is ideal for all uses that require a high level of stock removal. 5 g 1 µm strong blue 1-OS µm extra-strong blue 1-OS µm medium green 3-OS µm strong green 3-OS µm extra-strong green 3-OS µm medium yellow 6-OS µm strong yellow 6-OS µm extra-strong yellow 6-OS µm medium red 8-OS µm strong red 8-OS µm extra-strong red 8-OS µm medium brown 14-OS µm strong brown 14-OS µm extra-strong brown 14-OS µm medium mahagony 5-OS µm strong mahagony 5-OS µm extra-strong mahagony 5-OS µm medium purple 45-OS µm extra-strong purple 45-OS g 1 µm strong blue 1-OS µm extra-strong blue 1-OS µm medium green 3-OS µm strong green 3-OS µm extra-strong green 3-OS µm medium yellow 6-OS µm strong yellow 6-OS µm extra-strong yellow 6-OS µm medium red 8-OS µm strong red 8-OS µm extra-strong red 8-OS µm medium brown 14-OS µm strong brown 14-OS µm extra-strong brown 14-OS µm medium mahagony 5-OS µm strong mahagony 5-OS µm extra-strong mahagony 5-OS µm medium purple 45-OS µm extra-strong purple 45-OS Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 99

21 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez L diamond compounds Hyprez L diamond compounds, oil soluble Grit size Content Concentration Colour Type Order No. 9 pieces 6 pieces 3 pieces Hyprez L compound was developed for particularly hard materials. It is oil soluble and the best choice for treating tungsten carbide, ceramics, hardened and powder mettalurgic steels. 5 g in Hyplicator or 10 g spray. 5 g 1 µm extra-strong blue 1-L µm strong green 3-L µm strong yellow 6-L µm medium brown 14-L µm strong brown 14-l µm medium mahagony 5-L µm strong mahagony 5-L µm medium purple 45-L µm strong purple 45-L µm strong orange 60-L g 1 µm extra-strong blue 1-L µm strong green 3-L µm strong yellow 6-L µm medium brown 14-L µm strong brown 14-L µm medium mahagony 5-L µm strong mahagony 5-L µm medium purple 45-L µm strong purple 45-L µm strong orange 60-L Hyprez Super-L diamond compounds NEW! Hyprez Super L diamond compounds, oil soluble Content Concentration Grit size Order No. 9 pieces 6 pieces 3 pieces Very fine grits and extremely stable diamonds for final finishing of tungsten, ceramics and powder metallurgic steels. 5 g strong 0.10 µm strong 0.5 µm strong 0.75 µm strong 1 µm strong µm strong 3 µm

22 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez C11 diamond compounds Hyprez C11 diamond compounds, oil soluble Grit size Content Concentration Colour Type Order No. 9 pieces 6 pieces 3 pieces Especially for difficult applications on hot moulds or standing walls. The uneven surfaces of high-strength diamond grits ensure a high level of material removal, even in difficult situations. 5 g 1 µm strong bright yellow 1-C µm strong yellow 3-C µm strong ochre 6-C µm strong bright blue 14-C µm strong red 5-C µm strong brown 45-C g 1 µm strong bright yellow 1-C µm strong yellow 3-C µm strong ochre 6-C µm strong bright blue 14-C µm strong red 5-C µm strong brown 45-C i So many diamond compounds and yet you still haven t found the right one? For technically particularly difficult or exceptional uses, we will develop your own special, individual diamond compound. Please talk to Peter Grünewald about all the options: Tel. +49 (0) 04 / p.gruenewald@joke.de Hyprez diamond fluids Hyprez diamond fluids Content Order No. Price Hyprez OS diamond fluid, oil soluble 1 litre litres litres Hyprez W diamond fluid, water soluble 1 litre litres Spray bottles Order No. Price Spray bottle, 100 ml for filling with diamond fluid Pump spray bottle, 50 ml for filling with diamond fluid Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 101

23 . Grinding and polishing tools Ñ.1. Compounds and fluids Hyprez diamond gels Hyprez diamond gels Content Grit size Colour Type Order No. 5 pieces HYPREZ diamond gels combine the advantages of diamond compounds and diamond emulsions in one efficient product ideal for polishing large surface areas. They work in the conventional way but need no additional fluid or other substances. The gel retains its viscosity even for longer periods. The diamond grits are always evenly spread. The practical dispensing bottle is simple to use and enables economical dosing. Please be careful not to apply too much diamond gel - one drop is generally enough for the entire surface. Tip: To thoroughly clean the tool after polishing, we recoend X A cleaner (see page 500). 0 g 1 µm rot HYG µm yellow HYG µm yellow HYG µm green HYG µm blue HYG µm blue HYG µm blue HYG Hyprez diamond sprays Hyprez diamond sprays Content Grit size Order No. 5 pieces For efficient, economic polishing and lapping of large surfaces as well as impregnating polishing cloths and plates. The solvent contained in the diamond spray ensures the even distribution of diamond grits. Diamond particles do not clump together, which guarantees the full cutting power of every individual grit. 75 g 0.10 µm µm µm µm µm µm µm µm µm Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

24 . Grinding and polishing tools Ñ.1. Compounds and fluids Image: Manfred Esser Peter Grünewald Ñ As an enthusiastic family man, he is on the go 4 hours a day; he always takes care of others and is as solid as a rock. And it s the same when he is working for JOKE : Just like at home, he always keeps his cool when things get hot. With 0 years in the industry, Grüni always has the answer. Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 103

25 . Grinding and polishing tools Ñ.1. Compounds and fluids Dialux polishing compounds Dialux polishing compounds Content Order No. 10 pieces 5 pieces Ranging from normal polishing to superfinishing. The right compound for every application. Owing to the very good adhesive properties, this product is perfectly suited to work with polishing felts and brushes. Dialux polishing compound, green 140 g for polishing metals, chromium etc. Dialux polishing compound, white 15 g high-gloss polishing for all metals Dialux polishing compound, blue 10 g for super-finishing of all metals Dialux polishing compound, orange 145 g to eliminate scratches and streaks (high gloss polish white is additionally required for this purpose) Dialux polishing compound, grey 15 g for refreshing stainless steels Dialux polishing compound, yellow 110 g for polishing or refreshing non-ferrous metals and aluminium Dipo lapping and polishing compounds Dipo lapping and polishing compounds Content Grit size Order No. 5 pieces The classic product for polishing unhardened steels and aluminium. Available as a tube (50 ml) or in the large stock can (1,000 ml). 50 ml tube 5-8 µm, very fine µm, fine µm, coarse µm, very coarse piece 1,000 ml can 5-8 µm, very fine µm, fine µm, coarse µm, very coarse Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

26 . Grinding and polishing tools Ñ.1. Compounds and fluids Special grinding compounds Special grinding compounds Content Grit size Order No. Price For fine grinding, lapping and dressing work. Also suitable for plastic. Can be diluted and removed with oil, petroleum or petroleum spirit. 50 ml can 8-11 µm, very fine µm, fine µm, medium fine µm, mittel µm, coarse µm, very coarse NEW! Special gold polishing compound Special gold polishing compound Content Order No. Price Especially developed for polishing gold in the jewellery industry. A felt wheel is recoended as carrier. 55 g Marking pastes Marking pastes Content Order No. Price For controlling surfaces. The parts to be controlled are covered in marking paste after processing. The movement of components on a surface plate results in a colour layer, which provides information regarding the surface quality. Can be easily removed with a cleaning agent. 80 ml tube ml can Storage case Ñ Storage case Diamonds belong around a neck or in a security container for safe keeping. Your diamond compounds, however, should be kept in this storage case. The storage case accoodates compounds (applicators or Hyplicator ), as well as the tools prepared with the compound (polishing felts, wooden lapping sticks etc.) in a dust-free environment and above all, separately according to grit size. Storage case for diamond compounds Order No. Price without contents

27 . Grinding and polishing tools Ñ.. Felts and cloths Polishing felts What makes a good polishing felt Ñ Our polishing felt selection is the result of long, practical experience. All coon shapes, dimensions and grades of hardness are available. JOKE polishing felts are distinguished by the high stability and elasticity of their material. In order to obtain best results at all times, they should always be used in conjunction with Magic and/or Hyprez diamond compounds available from JOKE. Polishing felts from our company enable you to polish safely, cleanly and efficiently the most complicated shapes, such as print and injection mould shapes, cutting tools, castings, etc. d d i l l The hardness grade of a polishing felt is determined by the density and impregnation of the felt: Soft: Felt on its own without any impregnation (< 0.65 g/cm 3 thick) Standard: Light impregnation means greater stability (< 0.65 g/cm 3 thick) Super-hard: Total shape stability due to spe- L cial, additional dimpregnation (0.65 g/cm 3 thick) Felts are available from JOKE in a total l of 15 different shapes: L l Pear d D d D l l L l d L d d d d D D l L D L d D D L l D L L D d D l l L L d d l Halfround L l L d D d D d l D L l D d d l l Cone L Sphere L D d d D d l l l L L L D l D d D1 D L l d D1 L D d d d l Lens l L l L Wheel D D1 D L d d D d d l l l D1 L d L L D L D l D d D D L D l d l L d d Ring d D D l L d D d d d l l l L L D Rounded arch Pointed arch L l L d d d l d d l D l l l D l L L L L d D L L d D D D l D l L L l Pointed cone L d l L l D L d d Barrel D d d l l ld L D L L L d D D l L d d d l l L l Trapeze Drop l L Ld D d D1 D D d L d l l l l D1 L L L D D D D1 D L d d d D l l D1 L L D1 D D d l L Rounded barreld D d l L D1 D1 D D l L D1 d Cylinder l L d D l l L L D l L l L d 106 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de d d l L D D l L

28 . Grinding and polishing tools Ñ.. Felts and cloths Polishing felts shank Ø.35 x 40 Polishing felts, shank Ø.35 x 40 Shape Head dimensions Hardness Shank dimensions Order No. 100 pieces Pear Ø 8 x 11 Standard Ø.35 x Ø 9 x 13 Standard Ø.35 x Ø 9 x 13 Super-hard Ø.35 x Cone Ø 7 x 15 Standard Ø.35 x Ø 7 x 15 Super-hard Ø.35 x NEW! Sphere Ø 6 Standard Ø.35 x Lens Ø 17 x 5 Standard Ø.35 x Ø 17 x 5 Super-hard Ø.35 x Ø x 5 Standard Ø.35 x Ø x 5 Super-hard Ø.35 x Wheel Ø 17 x 5 Standard Ø.35 x Ø x 5 Standard Ø.35 x Ø x 5 Super-hard Ø.35 x Pointed cone Ø 6 x 18 Super-hard Ø.35 x Ø 7 x 15 Standard Ø.35 x Ø 7 x 15 Super-hard Ø.35 x Barrel Ø 8 x 11 Standard Ø.35 x Ø 9 x 13 Standard Ø.35 x Trapeze Ø 1 / 8 x 1 Standard Ø.35 x Ø 1 / 8 x 1 Super-hard Ø.35 x Drop Ø 8 x 11 Standard Ø.35 x Ø 9 x 13 Standard Ø.35 x Ø 9 x 13 Super-hard Ø.35 x NEW! Cylinder Ø 4 x 10 Standard Ø.35 x Ø 4 x 1 Super-hard Ø.35 x Ø 8 x 1 Standard Ø.35 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 107

29 . Grinding and polishing tools Ñ.. Felts and cloths Polishing felts shank Ø 3 x 40 Polishing felts, shank Ø 3 x 40 Shape Head dimensions Hardness Shank dimensions Order No. 100 pieces NEW! Sphere Ø 6 Standard Ø 3 x Ø 8 Standard Ø 3 x Ø 10 Standard Ø 3 x Ø 1 Standard Ø 3 x Rounded arch Ø 6 x 10 Standard Ø 3 x Ø 6 x 10 Super-hard Ø 3 x Ø 8 x 1 Standard Ø 3 x Pointed arch Ø 6 x 10 Standard Ø 3 x Ø 7 x 15 Standard Ø 3 x Ø 8 x 1 Standard Ø 3 x Ø 8 x 1 Super-hard Ø 3 x Pointed cone Ø 10 x 18 Standard Ø 3 x Trapeze Ø 9/6 x 15 Standard Ø 3 x Ø 10/7 x 15 Super-hard Ø 3 x Ø 15/10 x 15 Standard Ø 3 x Ø 15/10 x 15 Soft Ø 3 x Ø 15/10 x 15 Super-hard Ø 3 x Drop Ø 6 x 10 Standard Ø 3 x Ø 8 x 1 Standard Ø 3 x Rounded barrel Ø 6 x 10 Standard Ø 3 x Ø 8 x 1 Standard Ø 3 x Cylinder Ø 6 x 10 Standard Ø 3 x Ø 6 x 10 Soft Ø 3 x Ø 6 x 10 Super-hard Ø 3 x Ø 8 x 10 Super-hard Ø 3 x Ø 8 x 10 Standard Ø 3 x Ø 8 x 1 Soft Ø 3 x Ø 10 x 10 Super-hard Ø 3 x Ø 10 x 10 Standard Ø 3 x Ø 10 x 1 Soft Ø 3 x Ø 10 x 15 Soft Ø 3 x Ø 10 x 0 Standard Ø 3 x Ø 15 x 0 Standard Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

30 . Grinding and polishing tools Ñ.. Felts and cloths Polishing felts shank Ø 6 x 40 Polishing felts, shank Ø 6 x 40 Shape Head dimensions Hardness Shank dimensions Order No. 100 pieces Halfround Ø 30 x 0 Standard Ø 6 x Ø 30 x 0 Super-hard Ø 6 x Cone Ø 0 x 30 Standard Ø 6 x Ø 0 x 30 Super-hard Ø 6 x NEW! Sphere Ø 1 Standard Ø 6 x Ø 18 Standard Ø 6 x Ø 0 Standard Ø 6 x Rounded arch Ø 15 x 0 Standard Ø 6 x Ø 15 x 0 Super-hard Ø 6 x Ø 0 x 70 Standard Ø 6 x Trapeze Ø 0/13 x 5 Standard Ø 6 x Ø 30/ x 5 Standard Ø 6 x Cylinder Ø 10 x 1 Standard Ø 6 x Ø 1 x 1 Standard Ø 6 x Ø 15 x 0 Standard Ø 6 x Ø 15 x 0 Super-hard Ø 6 x Ø 15 x 30 Standard Ø 6 x Ø 0 x 0 Standard Ø 6 x Ø 0 x 0 Super-hard Ø 6 x Ø 0 x 30 Standard Ø 6 x Ø 5 x 30 Standard Ø 6 x Ø 30 x 35 Standard Ø 6 x Ø 30 x 35 Super-hard Ø 6 x Illustr. Art Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 109

31 . Grinding and polishing tools Ñ.. Felts and cloths Polishing felts sets JOKE Magic polishing felts NEW! Set of polishing felts (shank Ø 3 x 40 ), content: 14 pieces Order No. Price This set contains 1 x of following felt in standard hardness with shank dimensions Ø 3 x 40 : Rounded arch Ø 8 x 10 (Order No ) Rounded arch Ø 8 x 1 (Order No ) Pointed arch Ø 8 x 1 (Order No ) Pointed arch Ø 6 x 10 (Order No ) Pointed arch Ø 10 x 14 (Order No ) Pointed cone Ø 10 x 18 (Order No ) Trapeze Ø 15/10 x 15 (Order No ) Drop Ø 6 x 10 (Order No ) Drop Ø 8 x 1 (Order No ) Rounded cylinder Nose Ø 6 x 10 (Order No ) Rounded cylinder Nose Ø 8 x 1 (Order No ) Cylinder Ø 6 x 10 (Order No ) Cylinder Ø 8 x 10 (Order No ) Cylinder Ø 10 x 10 (Order No ) Set of polishing felts (shank Ø 6 x 40 ), content: s Order No. Price This set contains 1 x of following felt in standard hardness with shank dimensions Ø 6 x 40 : Halfround Ø 30 x 0 (Order No ) Cone Ø 0 x 30 (Order No ) Rounded arch Ø 15 x 0 (Order No ) Rounded arch Ø 0 x 70 (Order No ) NEW! JOKE magic polishing felts, non-self adhesive, pack content: 10 pieces Impregnation and rear barrier layer Cylinder Ø 10 x 1 (Order No ) Cylinder Ø 1 x 1 (Order No ) Cylinder Ø 15 x 0 (Order No ) Cylinder Ø 15 x 30 (Order No ) Cylinder Ø 0 x 0 (Order No ) Cylinder Ø 0 x 30 (Order No ) Cylinder Ø 5 x 30 (Order No ) Cylinder Ø 30 x 35 (Order No ) Shape Hardness Order No. 5 packs Ring Ø 30 / 1 x 4 Standard Rectangular 100 x 30 x Standard pack Square 90 x 90 x Standard i As suitable adhesive, we recoend Order No (See page 95) 110 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

32 . Grinding and polishing tools Ñ.. Felts and cloths Polishing felts rings, lenses, holders Polishing felt rings, non-self adhesive (pack content: 10 pieces) Exterior- Ø Interior Ø Height Hardness Order No. 10 packs 1 pack For use with ROTAFLEX polishing felts with Order No to Standard Standard Standard Standard Standard i As suitable adhesive, we recoend Order No (see page 95). For suitable rubber holders, see page 45 Polishing felt rings, self-adhesive, Pack content: 10 pieces Just remove the foil and stick onto matching RO- TAFLEX Polishing felts with Order No to No additional adhesive necessary! Exterior- Ø Interior Ø Height Hardness Order No. 10 packs Standard Standard Standard Standard Standard pack Polishing felt holder (rubber holders with attached felt ring) Hardness Shank dimensions Order No. 50 packs 1 pack Ø 18 Standard Ø.35 x Ø 18 Standard Ø 3 x Ø 30 Standard Ø 3 x Ø 45 Standard Ø 6 x Ø 60 Standard Ø 6 x Ø 75 Standard Ø 6 x Polishing felt lenses, without shank Bore Hardness Suitable drive arbour Order No. 100 packs 1 pack Ø 13 x 4 Standard Type Ø 16 x 5 Standard Type Ø 19 x 5 Standard Type Ø 5 x 6 Standard Type Ø 38 x 6 Standard Type Ø 51 x 8 6 Standard Type Ø 64 x 8 6 Standard Type Ø 76 x 8 6 Standard Type i Drive arbores are shown on page 45 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 111

33 . Grinding and polishing tools Ñ.. Felts and cloths Brass filament polishing felts Ñ Brass filament polishing felts The felts, which contain brass filaments, are excellent for working with complex geometries, such as with aluminium. In conjunction with compounds, they can be used to remove process residues (e.g. milling lines) very rapidly. For final polishing, felt discs, polishing felts or polishing brushes can be used. Brass filament polishing felts with shank Shape Head Shank dimensions Order No. 100 pieces Pointed cone Ø 10 x 18 Ø 3 x Trapeze Ø 15/10 x 15 Ø 3 x Cylinder Ø 6 x 10 Ø 3 x Ø 8 x 10 Ø 3 x Ø 10 x 10 Ø 3 x Ø 1 x 1 Ø 6 x Ø 15 x 0 Ø 6 x Ø 0 x 0 Ø 6 x Ø 5 x 30 Ø 6 x NEW! Sphere Ø 18 Ø 6 x NEW! Ø 18 Ø 6 x Polishing felt rings, non-self adhesive Exterior Ø Interior Ø Height Order No. 10 packs pack i As suitable adhesive, we recoend Order No (see page 95). For suitable rubber holders, see page 45. Brass filament polishing felt holders (rubber holders with attached felt ring) Shank dimensions Order No. 50 pieces Ø 18 Ø.35 x Ø 18 Ø 3 x Ø 30 Ø 3 x Ø 45 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

34 . Grinding and polishing tools Ñ.. Felts and cloths Felt lamellas on shank Felt lamellas on shank Design Head dimensions Hardness Felt strength Shank dimensions Order No. 0 pieces The main strength of these polishing felts is their elasticity. They fit perfectly onto the contours of the tool being used. In particular, their slit shape is a must-have for this type of work. Because these felts fit tool contours, you need less working pressure and that means less scoring on the workpiece. Essentially: You just get better results. Ideal for use with JOKEFLEX Premium or Power Motor Systems. Recoended speed: 3,000-6,000 rpm Standard 0 x 10 H 40 Ø 3 x x 10 H 40 Ø 6 x x 0 H 40 Ø 3 x x 0 H 40 Ø 6 x x 10 H 40 Ø 3 x x 10 H 40 Ø 6 x x 0 H 40 Ø 3 x x 0 H 40 Ø 6 x x 30 H 40 Ø 3 x x 30 H 40 Ø 6 x x 5 H 40 3 Ø 3 x x 5 H 40 Ø 6 x x 5 H 40 3 Ø 3 x x 5 H 40 3 Ø 6 x x 5 H 40 3 Ø 6 x Slit 30 x 10 H 40 Ø 3 x x 10 H 40 Ø 6 x x 0 H 40 Ø 3 x x 0 H 40 Ø 6 x x 30 H 40 Ø 3 x x 30 H 40 Ø 6 x x 10 H 40 3 Ø 6 x x 0 H 40 3 Ø 6 x x 30 H 40 3 Ø 6 x x 40 H 40 3 Ø 6 x x 0 H 40 3 Ø 6 x x 30 H 40 3 Ø 6 x x 40 H 40 3 Ø 6 x x 50 H 40 3 Ø 6 x x 30 H 40 3 Ø 6 x x 40 H 40 3 Ø 6 x x 50 H 40 3 Ø 6 x x 30 H 40 5 Ø 6 x x 40 H 40 5 Ø 6 x x 50 H 40 5 Ø 6 x x 30 H 40 5 Ø 6 x x 40 H 40 5 Ø 6 x x 50 H 40 5 Ø 6 x x 30 H 40 5 Ø 6 x x 40 H 40 5 Ø 6 x x 50 H 40 5 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 113

35 . Grinding and polishing tools Ñ.. Felts and cloths Felt sticks Felt sheets Felt sticks Shape Assorted felt sticks Hardness Order No. 10 pieces Square 6 x 6 x 150 medium x 10 x 150 medium x 1 x 150 medium x 6 x 150 standard x 10 x 150 standard x 1 x 150 standard Order No. Contents: 18 felt sticks, three in each hardness and design Felt sticks with shank, 30 slant Hardness Shank dimensions Order No. 6 x 6 x 37 medium Ø 3. x standard Ø 3. x super-hard Ø 3. x pieces 10 x 10 x 45 medium Ø 3. x standard Ø 3. x x 1 x 45 medium Ø 3. x standard Ø 3. x Assorted felt sticks with shank Order No. Price Contents: 6 pieces Felt sheets Hardness Order No. 5 pieces 3 x 50 x 50 standard x 50 x 50 soft medium standard x 50 x 50 soft medium standard x 50 x 50 medium standard x 50 x 50 medium standard x 50 x 50 soft medium standard Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

36 . Grinding and polishing tools Ñ.. Felts and cloths Polishing cloths, self-adhesive Ñ Polishing cloths Polishing cloths are perfect for final polishing. Thanks to their self-adhesive backing, these cloths can be mounted on a wide variety of holders. Thus, for example, tools used during preparation can be reused simply by sticking the polishing cloth on them. You can choose between standard polishing cloths and Magic JOKER, FINAL and SHINE polishing cloths, which were specially designed for use with JOKE Magic diamond compound. JOKER and FINAL cloths can be used on 99 % of materials. They are ideal for polishing all types of steel and aluminium. SHINE cloths were developed specially for polishing plastics. The cushioning base layer in these cloths means that they are very quiet to use and reduces score marks on the material. Breakouts and dimpling are prevented. Standard polishing cloths, self-adhesive, pack content: 10 pieces Type 450 for grit size 6 to 3 μm Type Packing unit Order No. 5 packs Ø 1 x pieces Ø 0 x pieces Ø 33 x pieces Ø 50 x pieces Ø 65 x pieces Ø 78 x pieces pack Type 43 for grit size 3 to 1/4 μm Ø 1 x pieces Ø 0 x pieces Ø 33 x pieces Ø 50 x pieces Ø 65 x pieces Ø 78 x pieces NEW! JOKE Magic polishing cloths, self-adhesive (pack content: 50 pieces) Magic JOKER for grit size 6 to 3 μm Type Packing unit Order No. Price per pack Magic JOKER Ø 0 x 1 50 pieces Ø 3 x 1 50 pieces x 11.5 x 1 50 pieces Magic FINAL for grit size 3 to 1 μm Magic FINAL Ø 0 x 50 pieces Ø 3 x 50 pieces x 11.5 x 50 pieces Magic SHINE for plastics Magic SHINE Ø 18 x 50 pieces Ø 30 x 50 pieces x 11.5 x 50 pieces i For best results with polishing cloths, we recoend our flexible rubber holders (see page 45). Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 115

37 . Grinding and polishing tools Ñ.3 Lapping tools Lapping and polishing tools made of wood Lapping and polishing tools made of wood, shank Ø 3 x 30 Shape Design Head dimensions Shank dimensions Order No. 10 pieces Cylinder Hard wood Ø 6 x 15 Ø 3 x Hard wood Ø 10 x 0 Ø 3 x Hard wood Ø 15 x 5 Ø 3 x Hard wood Ø 0 x 30 Ø 3 x Soft wood Ø 6 x 15 Ø 3 x Soft wood Ø 10 x 0 Ø 3 x Soft wood Ø 15 x 5 Ø 3 x Soft wood Ø 0 x 30 Ø 3 x Sphere Hard wood Ø 10 x 10 Ø 3 x Soft wood Ø 10 x 10 Ø 3 x Flame Hard wood Ø 10 x 30 Ø 3 x Soft wood Ø 10 x 30 Ø 3 x Lapping and polishing tools made of wood, shank Ø 6 Shape Design Head dimensions Shank dimensions Order No. 10 pieces Cylinder Hard wood Ø 15 x 5 Ø 6 x Hard wood Ø 0 x 30 Ø 6 x Soft wood Ø 15 x 5 Ø 6 x Soft wood Ø 0 x 30 Ø 6 x Ñ Lapping and polishing tools made of wood These tools made from hard and soft wood can be used rotating or linear (in hand-filing machines. Through profiling, these bobs can also be used on radii or similar. 116 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

38 . Grinding and polishing tools Ñ.3 Lapping tools Wooden lapping sticks hard and soft Wooden lapping sticks, hard Shape These sticks are made from laminated hard wood. The individual layers are pressed together crossways to their grain under very high pressure. This results in a long service life with very high structural stability. Their application includes preliminary polishing and whenever high stock removal is required. Hardness Order No. 10 pieces Square 3 x 3 x 150 Hard ,5 x 4,5 x 150 Hard ,5 x 6,5 x 150 Hard Rectangular 7 x 3 x 150 Hard x 8 x 150 Hard x 8 x 150 Hard piece Round Ø 3 x 150 Hard Ø 4,5 x 150 Hard Ø 6,5 x 150 Hard Round, unpointed Ø 10 x 300 Hard Hexagonal 8 x 8 x 300 Hard x 11 x 300 Hard x 16 x 300 Hard x 19 x 300 Hard Set Order No. Price Wooden lapping stick set, hard (9 pieces) Wooden lapping sticks, soft Shape These soft wooden lapping sticks are used as carriers for fine diamond compounds in high -gloss polishing. Precision is also a must: only carefully selected, clean, flawless wood is used for the manufacture of JOKE soft wood lapping sticks. Hardness Order No. 10 pieces Square 3 x 3 x 150 soft ,5 x 4,5 x 150 soft ,5 x 6,5 x 150 soft Rectangular 7 x 3 x 150 soft x 8 x 150 soft x 8 x 150 soft piece Round Ø 3 x 150 soft Ø 4,5 x x 150 soft Ø 6,5 x x 150 soft Set Order No. Price Wooden lapping stick set, soft (9 pieces) Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 117

39 . Grinding and polishing tools Ñ.3 Lapping tools JOKE Magic POL polishing blocks NEW! JOKE Magic POL polishing blocks Design A superior alternative to linear polishing with plastic applicators. These newly developed wooden polishing carrier are treated with a special impregnation. This guarantees a deformation-resistant surface, as the diamond grains cut during the polishing process instead of rolling, ensuring that no chatter marks are left behind. JOKE Magic diamond compound constantly supplies the polishing block with moisture, ensuring the best possible polishing action right up to the end. Packing unit Order No. 10 units Rectangular 7 x 9 x 5 10 pieces Rod 7 x 9 x x 5 x pieces x 8 x pieces x 10 x pieces unit suitable connecting rod Order No. Price Ball-ended rod JOKE Magic Plexiglas lapping sticks Plexiglas lapping sticks Shape For anyone, who cannot choose between hard and softwood lapping sticks, we offer this Plexiglas version. Their hardness falls right between the two wooden versions. Hardness Order No. 10 pieces Square 3 x 3 x 150 medium x 4.5 x 150 medium x 6.5 x 150 medium piece Rectangular 7 x 3 x 150 medium x 8 x 150 medium x 8 x 150 medium Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

40 . Grinding and polishing tools Ñ.3 Lapping tools NEW! JOKE Magic LAP lapping tools JOKE Magic LAP lapping tools Design Lap faster - through higher stock removal. This means higher quality without orange peel effect or excavations of carbide and slag. To get these results, the composition of Magic LAP lapping tools was modified in relation to conventional standard products, so that they no longer clog during the production process and do not leave chatter marks on the workpiece. Additionally, these lapping tools have an extremely long lifespan, as they do not have to be dressed as frequently. This leads to a marked reduction of effort for the subsequent polishing process. Packing unit Order No. 10 pieces Lapping tools 4 x 4 x 4 10 pieces x 6 x 4 10 pieces Ø 6 x 4 10 pieces x 8 x 8 x 4 10 pieces Lapping stick 4 x 4 x pieces x 8 x pieces x 8 x 8 x pieces i What s the difference between Magic LAP lapping tools and standard products? Magic LAP lapping tools only show the slightest deformation during processing. They do not produce orange peel effect or excavations. Best possible flatness of the lapping tools results in better working results in shorter time, as the cutting performance of the used diamond compounds is optimised. Please also note the detailed lapping tool comparison on page 90! suitable connecting rod Order No. Price Ball-ended rod JOKE Magic DIPROFIL lapping tools on a shank DIPROFIL lapping tools on a shank, shank Ø 3 Material Shank dimensions Type Order No. Price India 18 x 7 x Ø 3 x 30 LLC-A Cast iron 18 x 7 x 1 Ø 3 x 30 LLB-1A Copper 18 x 7 x 1 Ø 3 x 30 LLB-A Fibre 18 x 7 x 1.5 Ø 3 x 30 LLB-4A Felt 18 x 7 x 3 Ø 3 x 30 LLB-7A Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 119

41 . Grinding and polishing tools Ñ.3 Lapping tools Lapping and polishing rings for rotating processing Lapping and polishing rings, plastic and brass Design These lapping and polishing rings are driven by the corresponding holder and an angle handpiece. Tip: The lapping and polishing rings Ø 1 can also be used for linear movement with a ball-ended rod, for example in hand-filing machines. Packing unit Order No. Price per pack Plastic Ø 8 10 pieces Ø 1 0 pieces Ø 0 10 pieces Plastic collar ring Ø 1 5 pieces Brass Ø 8 10 pieces Ø 1 0 pieces Ø 0 10 pieces Brass collar ring Ø 1 5 pieces i When is a ring a lapping ring and when is it a polishing ring? Lapping medium carriers are dimensionally stable and therefore ddiffer from polishing medium carriers, which always more or less take on the workpiece geometry. The carrier material therefore plays an important role for their definition: With metal tools, the process is referred to as lapping, if the tool is made from plastic, it is called polishing. However, the transition is not fixed. Diamond lapping and polishing rings Diamond lapping and polishing rings with metalbound diamonds for lapping of. copied, milled, turned and eroded surfaces with peak-to valley heights greater than 5 μm. Ring and workpiece must be free of oil. Build-up edges must be removed with the ring on abrasive paper of grit size Grit size Order No. Price Ø 8 D Ø 1 D Ø 0 D suitable holders for lapping and polishing rings Shank dimensions Ø 1,6 Ø Order No. Price Ø 3 Ø Ø Ø Ø 6 Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

42 . Grinding and polishing tools Ñ.3 Lapping tools Polishing cloth rings for rotating processing Polishing cloth ring set, rubber Order No. Pack. price Rubber rings for securing the polishing cloths, which are also very suitable for polishing similar to rubber carriers with a fitted polishing cloth. The set contains 10 polishing cloth rings, 5 polishing cloths, 1 mounting cone and 5 rubber rings. Ø Ø Ø Accessories for polishing cloth rings Pack. unit Polishing cloths, nylon Ø Ø Ø Order No. Price per pack Rubber ring Ø Ø Ø Mounting cone Ø Ø Ø i How does the cloth get onto the ring? 1. Arrange the ingredients : ring, cloth, rubber ring and mounting cone in front of you.. Position the polishing cloth on the polishing cloth ring. 3. Slide the mounting cone onto the cloth. 4. Carefully move the rubber ring down the cone, until it sits on the polishing cloth and pulls the cloth tight. 5. Install on self-made tool with holder and handpiece. As a secret ingredient, we recoend a pint of lager at the perfect temperature (7 C) of course only after the work is done! Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 11

43 . Grinding and polishing tools Ñ.3 Lapping tools Lapping and polishing rings/ tools for linear processes Lapping and polishing rings/ tools, plastic and brass Design Shape Suitable ballended rod Pack. unit Order No. 5 packs 1 pack Rings, squares and triangles made of brass and plastic for lapping and polishing of small faces, corners and edges (particularly triangles). Linear movement through ballended rods, which are clamped into hand-filing machines. Brass Ring Ø x piec Ring Ø.5 x piec Ring Ø 3 x piec Ring Ø 4 x piec Ring Ø 5 x piec Ring Ø 6 x piec Square x x piec Square.5 x.5 x piec Tip: In order to facilitate work, we also offer a suitable pair of tweezers! Square 3 x 3 x piec Square 4 x 4 x piec Square 5 x 5 x piec Square 6 x 6 x piec Triangle 3.5 x 3.5 x piec Triangle 6.0 x 6.0 x piec Triangle 8.0 x 8.0 x piec Plastic Ring Ø x piec Ring Ø.5 x piec Ring Ø 3 x piec Ring Ø 4 x piec Ring Ø 5 x piec Ring Ø 6 x piec Square x x piec Square.5 x.5 x piec Square 3 x 3 x piec Square 4 x 4 x piec Square 5 x 5 x piec Square 6 x 6 x piec Triangle 3.5 x 3.5 x piec Triangle 6.0 x 6.0 x piec Triangle 8.0 x 8.0 x piec Sets Order No. Price Lapping and polishing tool set, rings and squares pieces each in brass and plastic Lapping and polishing tool set, triangles pieces each in every size in brass and plastic 1 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

44 . Grinding and polishing tools Ñ.3 Lapping tools Ball-ended rods for lapping and polishing rings/ tools Ball-ended rods, straight Shank dimensions Order No. Price Ø 1.8 x 140 Ø Ø. x 140 Ø Ø.7 x 140 Ø Ø 3.5 x 140 Ø Ø 4.5 x 140 Ø Ø 5.5 x 140 Ø Ø 8.0 x 140 Ø Ø 1.0 x 140 Ø Accessories Order No. Price Tweezers suitable for lapping tools and lapping rings Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 13

45 . Grinding and polishing tools Ñ.3 Lapping tools flex-poli-snap lapping and polishing frame system flex-poli-snap lapping and polishing tools Design Shape suitable ballended rod Pack. unit Order No. 5 packs 1 pack These lapping and polishing tools are linked to the ball-ended rod via a clever snap-mechanism. This prevents the ball-ended rod from slipping during processing and damaging the material. Plastic Ring Ø / piec Ring Ø / piec Ring Ø / piec Ring Ø / piec Square 4 x / piec Square 5 x / piec Square 6 x / piec Square 8 x / piec Brass Ring Ø / piec Ring Ø / piec Ring Ø / piec Ring Ø / piec Square 4 x / piec Square 5 x / piec Square 6 x / piec Square 8 x / piec Set Order No. Price flex-poli-snap lapping and polishing tool set tools each in brass and plastic, Ø or edge length: flex-poli-snap ball-ended rods Design for lapping tool size Shank dimensions Order No. Price The flex-poli-snap ball-ended rods are available with angulated and straight heads. Both versions offer the click for the secure snap-on connection between tool and rod. Angulated Ø 1.9 Ø 4 / 4 x 4 Ø Ø.4 Ø 5 / 5 x 5 Ø Ø.9 Ø 6 / 6 x 6 Ø Ø 3.9 Ø 8 / 8 x 8 Ø Straight Ø 1.9 Ø 4 / 4 x 4 Ø Ø.4 Ø 5 / 5 x 5 Ø Ø.9 Ø 6 / 6 x 6 Ø Ø 3.9 Ø 8 / 8 x 8 Ø Set Order No. Price flex-poli-snap ball-ended rod set straight and 4 angulated flex-poli-snap ball-ended rods, rod rest, allen key, 8 plastic snap rings 14 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

46 . Grinding and polishing tools Ñ.3 Lapping tools Image: Manfred Esser Hanns-Friedrich Kettenbaum Ñ Kb, as he is known as, always has thousands of thoughts and visions in his head. Good job he has his music, where he can let off some steam. We don t mind if he blows us a tune from time to time. One of his recent wisdoms: Anyone can listen to music, but if you can feel it, it will touch your soul. Interesting point let s talk about feelings: We agree that technology or not passion and coitment is what counts. It s a case of (professional) life imitating art with JOKE. Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 15

47 . Grinding and polishing tools Ñ.3 Lapping tools Internal and external lapping tools HELICAL LAP Ñ The solution for perfect bores HELICAL LAP internal and external lapping tools are made of close-grained grey cast iron. A homogonous smooth structure is achieved by a special annealing process making HELILAP the ideal carrier for any lapping media, especially for JOKE Magic and/or Hyprez diamond compounds. HELICAL LAP internal lapping tools have a spiral cut and taper bore, which fits precisely to the corresponding shaft. These two features guarantee a uniform and cylindrical expansion of the lapping tools. Roundness and parallelism of bores can be achieved quickly and economically within extremely fine limits. All internal lapping tools are ground. They are supplied at least 0.0 smaller than the indicated nominal diameter. A specific shank and driver size can always be used for the listed range of diameters of the lapping tools (refer to table). The retraction tool is used for the expanded lapping tool. It is available with several inserts; for applications refer to the table. HELICAL LAP outside lapping tools also have a spiral cut and must be used with the corresponding holder. First, the lapping tool is fixed in the holder to prevent the tool from rotating simultaneously. The inside diameter of the lapping tool can be adjusted to a precisely round shape by contracting the holder. All external lapping tools are ground and supplied at least 0.0 bigger than the indicated nominal diameter. HELICAL LAP lapping tools Internal lapping tools should be longer than the bore to be lapped External lapping tools should be shorter than the shaft to be lapped Lapping tools should be stored separately according to the grit size. i Procedures instructions Drilling and reaming, then finishing with HELICAL LAP, Tolerance All finished bores must be cylindrical and round, max. deviation 0. µm. The hrms value must be at least be 0.05 µm. Measuring results 1. INITIAL SITUATION Steel bush, hardened Ø 16 x 35 Measuring instrument: Taylor Hobson Talyrond Roundness error: 0.04 Measured hrms value: 0.6 μm. ROUGH LAPPING Time: 5 min Tool: HELICAL LAP Lapping compound: JOKE HYPREZ diamond compound 14 μm Correction of roundness to FINISHING Time: 5 min Tool: HELICAL LAP Lapping compound: JOKE HYPREZ diamond compound 3 μm Correction of roundness to Measured hrms value: 0.04 μm 16 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

48 . Grinding and polishing tools Ñ.3 Lapping tools HELICAL LAP internal lapping tools Standard dimensions HELICAL LAP internal lapping tools End Ø E Total length D Order No. Suitable shank Suitable driver Suitable retraction tool Without radial groove With radial groove i Practical tips If the desired diameter cannot be found in the table, rework the next largest lapping tool to the suitable diameter, e.g. on a lathe. The recesses must be retained, since they serve as a compound reservoir. The diameter to be adjusted is always the actual bore diameter minus x stated grit size of the compound used. Process, clean and measure the bore and subsequently fit the tool to the mandrel accordingly by expansion. Special sizes available on request! Please enquire about our special sizes, indicating the desired end diameter of the workpiece to be processed B C D A E Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 17

49 . Grinding and polishing tools Ñ.3 Lapping tools HELICAL LAP inside lapping tools Standard dimensions Suitable shanks Type Shank dimensions A x B; B A Cone length C Order No. 3/0 Ø 3. x /0 Ø 3. x Ø 3. x Ø 4.8 x Ø 4.8 x Ø 4.8 x Ø 5.6 x Ø 7. x Ø 8 x Ø 9.5 x Suitable drivers Type Order No. i Your choice made easy Refer to the relevant column in the internal lapping tools table to find the matching accessories. Should you have further questions, your contact Jürgen Meyer will be happy to answer them: Tel. +49 (0) 04 / j.meyer@joke.de 4/ / / Suitable retraction tools with several inserts Type Order No. Size Size A B i Request with fax template Please use the fax template to facilitate your requests. Simply complete the relevant sections, fax it and we will then issue you an appropriate offer. C 18 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

50 . Grinding and polishing tools Ñ.3 Lapping tools HELICAL LAP application advice HELICAL LAP application advice F Fax-No. +49 (0) 04 / Internal lapping tool Actual Ø of bore Depth/length of bore Actual Ø Base hole bore q yes q no External lapping tool Depth/length of bore Actual Ø of shank Required width of lapping tool Actual Ø Actual width of shank Actual width Sender Company Name First name Department Address 1 Address Phone No. Fax No. Date, Signature Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 19

51 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Polishing brushes and buff wheels i Characteristics and main application of brushes Brush material Characteristics Application Fine cotton Natural product Plucked Very adaptable Glossing, polishing, dusting off Used with compounds Felt buff wheels Natural product Very adaptable Glossing, polishing, dusting off Used with compounds Plain-weave cotton/fleece Very adaptable High rigidity High stock removal Glossing, polishing, dusting off Used with compounds Goat hair Very soft and flexible Natural product Glossing, polishing, dusting off Used with compounds Bristles (black or white), hogs hair Flexible Elastic Hardest of all natural products Good adhesion of compounds in the individual bristles (hollow) Glossing, polishing, dusting off Used with compounds Nylon/Perlon Surpass most other chemical fibres with reference to resistance to abrasion, elasticity, flexibility and durability Resistant to coon solvents, but readily soluble in acids Preferred use in the food and chemical industry over natural products (bristles) Glossing, polishing, dusting off Used with compounds Deerskin Very adaptable Natural product Hard-wearing High stock removal Glossing, polishing, dusting off Used with compounds Brass wire More supple and soft in the ground section in comparison to steel wires Discolouration of workpiece possible Polishing, descaling, deburring Used with or without compounds BAE steel, Bessemer wire Steel wire Flexible and elastic Distinctly visible ground section results Preliminary polishing, descaling, deburring Used with or without compounds VA wire Similar characteristics to steel wire Resistant to alkalis, acids Less susceptible to breaking than steel wire Does not leave any rust residue; can be used with water Preliminary polishing, descaling, deburring of stainless steel and aluminium Polishing with water and at high temperatures Used with or without compounds 130 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

52 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels NEW! Fleece polishing wheels Shank Ø.35 / 3 Ñ Fleece polishing wheels These fleece polishing wheels can be used wet or dry for deburring, matting, and finishing surfaces. They provide a cool, soft polish. Thanks to their elasticity, these wheels adapt well to surface outlines. Application with all steels, non-ferrous heavy metals, aluminium and plastics. Ideal for use with ENESKA 4-1 (from page 8) and JOKEFLEX (from page 38) drive systems. Fleece polishing wheels, shank Ø.35 Head dimensions Grit size Shank dimensions Order No. 100 pieces 50 pieces 10 pieces Abrasive fleece, foamed Ø 5 x 6 coarse K 80 Ø.35 x P nmax 10,000 rpm Abrasive fleece, dual layer Ø 5 x 6 medium K 180 Ø.35 x P nmax 1,400 rpm Ø 5 x 6 fine K 40 Ø.35 x Ø 5 x 6 fine K 400 Ø.35 x Ø 5 x 8 medium K 180 Ø.35 x nmax 10,000 rpm Fleece polishing wheels, shank Ø 3 Head dimensions Hardness Grit size Shank dimensions Order No. 100 pieces 50 pieces 10 pieces Abrasive fleece, foamed Ø 30 x 3 medium medium K 180 Ø 3 x P nmax 8,000 rpm Ø 30 x 6 hard coarse K 80 Ø 3 x Ø 30 x 6 medium medium K 180 Ø 3 x Ø 30 x 6 soft fine K 80 Ø 3 x Ø 40 x 3 medium medium K 180 Ø 3 x Ø 40 x 6 hard coarse K 80 Ø 3 x Ø 40 x 6 medium medium K 180 Ø 3 x Ø 40 x 6 soft fine K 80 Ø 3 x Abrasive fleece, triple layer Ø 30 x 17 - very coarse Ø 3 x P nmax 8,000 rpm Ø 30 x 17 - coarse K 80 Ø 3 x Ø 30 x 17 - medium K 180 Ø 3 x Ø 30 x 17 - fine K 80 Ø 3 x Ø 30 x 17 - no grit Ø 3 x Ø 40 x - very coarse Ø 3 x Ø 40 x - coarse K 80 Ø 3 x Ø 40 x - medium K 180 Ø 3 x Ø 40 x - fine K 80 Ø 3 x Ø 40 x - no grit Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 131

53 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Polishing brushes shank Ø.35 P nmax rpm Polishing brushes, shank Ø.35 Material Shape Head dimensions; Wire Ø Shank dimensions; Order No. 100 pieces Small brushes Bristles, black - Ø 4 x 8 - Ø.35 x Bristles, black - Ø 5.5 x 11 - Ø.35 x Bristles, black - Ø 7 x 13 - Ø.35 x Bristles, white - Ø 4 x 8 - Ø.35 x Bristles, white - Ø 5.5 x 11 - Ø.35 x Brass, corrugated - Ø 4 x Ø.35 x Brass, corrugated - Ø 5.5 x Ø.35 x BAE steel, corrugated - Ø 4 x Ø.35 x BAE steel, corrugated - Ø 5.5 x Ø.35 x VA wire, corrugated - Ø 3 x Ø.35 x VA wire, corrugated - Ø 4 x Ø.35 x VA wire, corrugated - Ø 5.5 x Ø.35 x VA wire, corrugated - Ø 6 x Ø.35 x Small brushes with elastic protection Bristles, black - Ø 4 x 8 - Ø.35 x Bristles, white - Ø 4 x 8 - Ø.35 x Brass, corrugated - Ø 4 x Ø.35 x BAE steel, corrugated - Ø 4 x Ø.35 x VA wire, corrugated - Ø 4 x Ø.35 x Wheels Goat hair - Ø 16 x 1 - Ø.35 x Goat hair - Ø x 1 - Ø.35 x Nylon - Ø x Ø.35 x Bristles, black - Ø 16 x 1 - Ø.35 x Bristles, black - Ø 19 x 1 - Ø.35 x Bristles, black - Ø x 1 - Ø.35 x Bristles, white - Ø 16 x 1 - Ø.35 x Bristles, white - Ø 19 x 1 - Ø.35 x Bristles, white - Ø x 1 - Ø.35 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

54 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Polishing brushes shank Ø.35 P Nmax 10,000 rpm Polishing brushes, shank Ø.35 Material Shape Head dimensions; Wire Ø Shank dimensions; Order No. 100 pieces Brass, corrugated - Ø 16 x 0.10 Ø.35 x Brass, corrugated - Ø 19 x 0.10 Ø.35 x Brass, corrugated - Ø x 0.08 Ø.35 x BAE steel, corrugated - Ø 16 x 0.08 Ø.35 x BAE steel, corrugated - Ø 19 x 0.08 Ø.35 x BAE steel, corrugated - Ø x 0.10 Ø.35 x VA wire, corrugated - Ø 16 x 0.08 Ø.35 x VA wire, corrugated - Ø 19 x 0.08 Ø.35 x VA wire, corrugated - Ø x 0.08 Ø.35 x Cup Goat hair, white bevelled Ø 8 x 4 - Ø.35 x Goat hair, white cylindrical, straight Ø 1 x 5 - Ø.35 x Goat hair, white bevelled Ø 1 x 8 - Ø.35 x Nylon bevelled Ø 8 x 4 - Ø.35 x Nylon cylindrical, straight Ø 1 x Ø.35 x Bristles, black bevelled Ø 8 x 4 - Ø.35 x Bristles, black cylindrical, straight Ø 1 x 5 - Ø.35 x Bristles, black straight Ø 1 x 8 - Ø.35 x Bristles, black bevelled Ø 1 x 8 - Ø.35 x Bristles, white bevelled Ø 8 x 4 - Ø.35 x Bristles, white cylindrical, straight Ø 1 x 5 - Ø.35 x Bristles, white straight Ø 1 x 8 - Ø.35 x Bristles, white bevelled Ø 1 x 8 - Ø.35 x Brass, corrugated cylindrical, straight Ø 1 x Ø.35 x Brass, corrugated bevelled Ø 1 x Ø.35 x Brass, corrugated straight Ø 1 x Ø.35 x BAE steel, corrugated straight Ø 1 x Ø.35 x BAE steel, corrugated bevelled Ø 1 x Ø.35 x BAE steel, corrugated cylindrical, straight Ø 1 x Ø.35 x VA wire, corrugated bevelled Ø 1 x Ø.35 x VA wire, corrugated straight Ø 1 x Ø.35 x Straight shape, cylindrical shape Straight shape, normal Bevelled shape Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 133

55 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Polishing buff wheels shank Ø.35 P nmax 10,000 rpm Polishing buff wheels, shank Ø.35 Material Layers Head dimensions Shank dimensions Order No. 100 pieces Wheels Fine cotton - Ø x 6 Ø.35 x Felt 3 layers Ø x 6 Ø.35 x Deerskin 5 layers Ø x 8 Ø.35 x Plain-weave cotton 16 layers Ø x 3 Ø.35 x Fleece 8 layers Ø 1 x 3 Ø.35 x Ceramic-fibre abrasive brushes shank Ø 3 x 30 P nmax 1,000 rpm NEW! Ceramic-fibre abrasive brushes, shank Ø 3 x 30 Head dimensions Grit size Colour Shank dimensions Order No. 10 pieces 5 pieces In this tool, individual ceramic-fibres are grouped together to form a brush. This allows effective work and optimum performance. Excellent properties in eliminating erosion structures and for deburring aluminium, brass etc. Ø 5 x 0 # 1000 / 15 µm white Ø 3 x Ø 5 x 0 # 100 / 10 µm red Ø 3 x Tip: The additional use of diamond paste considerably improves the working result. P nmax 1,000 rpm Ceramic-fibre abrasive brushes, shank Ø 3 x 30 P nmax 1,000 rpm NEW! Polishing brushes, shank Ø 3 Material Head dimensions Shank dimensions Order No. 5 pieces 3 pieces Brass Ø 1.5 x 10 Ø 3 x This is the perfect brush for use in ultrasonic polishing systems. In combination with the diamond compound 3 μ or 6 μ, this brush is perfectly suited for eliminating erosion structures radii and on uneven surfaces. The compound allows a high-gloss finish in short working times even on ungsten carbide. Can also be used as a rotational tool in ENESKA handpieces. 134

56 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Polishing brushes shank Ø 3 P nmax 10,000 rpm Polishing brushes, shank Ø 3 Material Shape Head dimensions Wire Ø Shank dimensions Order No. 100 pieces Cup Horse hair bevelled Ø 5 x 15 - Ø 3 x Goat hair bevelled Ø 5 x 15 - Ø 3 x Wheel Brass, corrugated - Ø 3 x 0.10 Ø 3 x Polishing brushes shank Ø 6 P nmax 10,000 rpm Polishing brushes, shank Ø 6 Material Head dimensions Wire Ø Shank dimensions; Order No. Wheel Goat hair Ø 45/5 x 4 - Ø 6 x pieces Cotton Ø 45/5 x 4 - Ø 6 x Fleece, 8 layers Ø 80/40 x 8 - Ø 6 x Perlon Ø 45/5 x 4 0,1 Ø 6 x Bristles, black Ø 45/5 x 4 - Ø 6 x Brass wire Ø 45/5 x 4 0,1 Ø 6 x Brass wire Ø 30/18 x 6 0,1 Ø 6 x Brass wire Ø 50/5 x 6 0,1 Ø 6 x Bessemer wire Ø 45/5 x 4 0,1 Ø 6 x Bessemer wire Ø 0/14 x 6 0,1 Ø 6 x Bessemer wire Ø 30/18 x 10 0,1 Ø 6 x Bessemer wire Ø 30/18 x 6 0,1 Ø 6 x Bessemer wire Ø 50/5 x 6 0,1 Ø 6 x Bessemer wire Ø 50/5 x 10 0,1 Ø 6 x Bessemer wire Ø 50/5 x 15 0,1 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 135

57 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels JOKE HABRAS polishing brushes shank Ø 3 x 40 Ñ JOKE HABRAS polishing brushes The carrier of these polishing brushes is a polyamide fibre, which is characterised by high elasticity and crack-proofness and therefore suitable for a wide range of applications. The abrasives silicon carbide and aluminium oxide are uniformly embedded in the fibres. The versatile application possibilities of brushes in the HABRAS series result from the different grit sizes. During processing, the HABRAS brushes are characterised above all by high stability and low dust production. i HABRAS brushes and HABRAS discs what s the difference? First of all, the discs are only available as wheels and in contrast to the brush wheels consist of 4 layers. The main difference, however, is that the grit is sitting on the brush fibres, whilst it is embedded in the material of the HABRAS discs. Applications: e.g. breaking tungsten carbide cutting edges. Strip before first use on K 30! JOKE HABRAS polishing brushes Abrasiv Fibre width Head dimensions Grit size Colour Shank dimensions; Order No. Small brushes AlO coarse Ø 5/8 P 30 blue/red Ø 3 x P nmax 6,000 rpm AlO medium Ø 5/8 P 500 blue/green Ø 3 x AlO fine Ø 5/8 P 600 blue Ø 3 x pieces SiC coarse Ø 5/8 P 30 green Ø 3 x SiC medium Ø 5/8 P 500 red Ø 3 x SiC extra fine Ø 5/8 P 800 white Ø 3 x Wheels AlO coarse Ø P 30 blue/red Ø 3 x P nmax 6,000 rpm AlO medium Ø P 500 blue/green Ø 3 x AlO fine Ø P 600 blue Ø 3 x SiC coarse Ø P 30 green Ø 3 x SiC medium Ø P 500 red Ø 3 x SiC extra fine Ø P 800 white Ø 3 x Cup AlO coarse Ø 1/6 P 30 blue/red Ø 3 x AlO medium Ø 1/6 P 500 blue/green Ø 3 x P nmax,800 rpm AlO fine Ø 1/6 P 600 blue Ø 3 x SiC coarse Ø 1/6 P 30 green Ø 3 x SiC medium Ø 1/6 P 500 red Ø 3 x SiC extra fine Ø 1/6 P 800 white Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

58 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels JOKE HABRAS polishing discs shank Ø 3 x 40 Ñ JOKE HABRAS polishing discs These discs are especially suitable for processing soft metals, aluminium and non-ferrous heavy metals to a high-gloss finish. HABRAS discs are characterised by an excellent service life with high stock removal. Thanks to their slotted shape, HABRAS discs adapt to the shape of the processed surface. Hard, tough metals can be matt-finished and polished to brilliance with HABRAS discs. An existing surface patina is removed without modifying the surface geometry. Well suited for deburring of hard plastics. Tip: Briefly strip HABRAS discs before first use and observe maximum speed and direction of rotation. Apply light, but even working pressure. P nmax rpm vmax 10 m/s JOKE HABRAS polishing discs, 4 layers Abrasive Polish Head dimensions Grit size Colour Shank dimensions; Order No. Wheel - 4 discs AlO coarse Ø 19 P 80 yellow Ø 3 x Spare discs: 4 pieces - Order No pieces - Order No pieces AlO standard Ø 19 P 0 red Ø 3 x Spare discs: 4 pieces - Order No pieces - Order No AlO fine Ø 19 P 440 blue Ø 3 x Spare discs: 4 pieces - Order No pieces - Order No Pumice very fine Ø 19 - pink Ø 3 x Spare discs: 4 pieces - Order No pieces - Order No extra fine special fused aluminium oxide gloss Ø 19 6 µ orange Ø 3 x Spare discs: 4 pieces - Order No pieces - Order No extra fine special fused aluminium oxide highgloss Ø 19 1 µ light green Spare discs: 4 pieces - Order No pieces - Order No Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 137

59 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Pipe brushes Ñ Pipe brushes Pipe brushes are very suitable for deburring and cleaning, for example of cross holes and punctures. Flexible nylon or steel (NEW!) brushes prevents material breakage even with heavier stresses and deformation. The pipe brushes are available in three designs: nylon standard with silicon carbide or aluminium carbide abrasives sitting on the nylon, nylon diamond with industrial diamonds sitting on the nylon material (particularly suitable for tungsten carbides) and with steel brush (without additional abrasive) for simple deburring jobs. Tip: The nylon diamond version additionally improves the surface quality! i Better to go large Optimum working results are achieved form a bore diameter of > 4 with brush overdimensions of ca %. Nylon pipe brushes Head dimensions Abrasive Grit size Shank dimensions; Total length Order No. 10 pieces Nylon pipe brushes smooth the surface and prepare it for further processing. The twisted wire is zinc coated. Suitable for manual and machine use. Ø 0.7 x 1 SiC K 1000 Ø Ø 1. x 1 SiC K 1000 Ø Ø 1.9 x 18 SiC K 1000 Ø Ø. x 18 SiC K 1000 Ø Ø.6 x 5 SiC K 1000 Ø Ø 3. x 5 SiC K 1000 Ø Ø 3.5 x 5 SiC K 1000 Ø Ø 4. x 5 AlO K 600 Ø Ø 4.8 x 5 AlO K 600 Ø Ø 5.5 x 5 AlO K 600 Ø P nmax rpm Ø 6.6 x 5 AlO K 600 Ø Ø 8. x 5 AlO K 600 Ø Ø 9.8 x 5 AlO K 600 Ø Ø 10.5 x 5 AlO K 600 Ø Ø 13.0 x 5 AlO K 600 Ø Ø 16.0 x 5 AlO K 600 Ø Ø 17.5 x 5 AlO K 600 Ø Ø 19.4 x 5 AlO K 600 Ø Ø.6 x 5 AlO K 600 Ø Ø 5.8 x 5 AlO K 600 Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

60 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Pipe brushes Nylon/diamond pipe brushes Head dimensions Abrasive Grit size Shank dimensions Total length Order No. 10 pieces By the use of industrial diamonds in the nylon material, these brushes are eminently suitable for processing tungsten carbide. The shank in zinc coated twisted wire is additional stabilised with a brass bush for brush Ø 4.0 and above. Suitable for manual and machine use. Ø.0 x 0 K 400 K 400 Ø Ø.5 x 0 K 400 K 400 Ø Ø 3.0 x 0 K 400 K 400 Ø Ø 3.5 x 0 K 400 K 400 Ø Ø 4.0 x 0 K 400 K 400 Ø Ø 5.0 x 0 K 400 K 400 Ø Ø 6.0 x 0 K 400 K 400 Ø Ø 7.0 x 0 K 400 K 400 Ø Ø 8.0 x 0 K 400 K 400 Ø Ø 9.0 x 0 K 400 K 400 Ø Ø 10.0 x 0 K 400 K 400 Ø Ø 1.0 x 0 K 400 K 400 Ø P nmax rpm Ø 15.0 x 0 K 400 K 400 Ø Ø 17.0 x 0 K 400 K 400 Ø Ø 19.0 x 0 K 400 K 400 Ø Ø.0 x 0 K 400 K 400 Ø Ø 5.0 x 0 K 400 K 400 Ø Steel pipe brushes Head dimensions Material Wire Ø Shank dimensions Total length Order No. s P nmax rpm Ø 6 x 5 Steel 0.13 Ø Ø 8 x 5 Steel 0.13 Ø Ø 10 x 5 Steel 0.13 Ø Ø 11 x 5 Steel 0.13 Ø Ø 13 x 5 Steel 0.13 Ø Ø 14 x 5 Steel 0.13 Ø Ø 16 x 5 Steel 0.13 Ø Ø 18 x 5 Steel 0.13 Ø i Even steel in overdimensions As with nylon brushes, steel pipe brushes should be chosen with brush overdimensions of % (for bore Ø 16 and above). Ø 19 x 5 Steel 0.13 Ø Ø 1 x 5 Steel 0.13 Ø Ø x 5 Steel 0.13 Ø Ø 4 x 5 Steel 0.13 Ø Ø 5 x 5 Steel 0.13 Ø Ø 9 x 5 Steel 0.13 Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 139

61 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels Novoflex nylon honing brushes NEW! Ñ Novoflex nylon honing brushes An innovative tool for perfect results on surfaces or in bores. These silicon carbide abrasive balls have a flexible arrangement and therefore adapt to the processed surface even in noncircular bores. These brushes are useful for example for removing burr on all coon materials. The Novoflex honing brush leave a cross-grinding on the surface, which is the perfect carrier for an eventual oil film. The surface is free from cold-shaped or deformed material. All you need to work with these brushes is a conventional hand drill. Honing machines or automatic systems can be used for serial production. Possible applications: Motor cylinders Drive rods Bores on shafts and crank levers Pneumatic and hydraulic cylinders Valve guides Compressed air units Wheel brake cylinders Brake control cylinders Pipes and hoses Many more applications in the automotive, aeronautics and aerospace construction and in the firearms industry. i Important points for the use of Novoflex nylon honing brushes 1. Always choose the brush diameter according to the bore. If the desired brush size is not available, use the next larger one.. Always use the brushes with an oil with a viscosity between 10 and 30 or with special honing oil. We also recoend JOKE lubricant X Recoended speed: rpm; Rotation: strokes/min 4. Optimum processing time: ca. 0 to 40 seconds. Illustration approx. original size 140 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

62 . Grinding and polishing tools Ñ.4. Polishing brushes and buff wheels NEW! Novoflex nylon honing brushes Novoflex nylon honing brushes For bore hole size Head dimensions Total length Shank dimensions Grit size (yellow) Order No. Price Grit size (green) Order No. Price Ø 8 Ø 9 x Ø Ø 10 Ø 11 x Ø Ø 11 Ø 1 x Ø Ø 1 Ø 13 x Ø Ø 14 Ø 15.5 x Ø Ø 16 Ø 18 x Ø Ø 18 Ø 0 x Ø Ø 0 Ø x Ø Ø Ø 5 x Ø Ø 4 Ø 7 x Ø Ø 5 Ø 8 x Ø Ø 7 Ø 30 x Ø Ø 9 Ø 3 x Ø Ø 3 Ø 35 x Ø Ø 35 Ø 38 x Ø Ø 38 Ø 41 x Ø Ø 4 Ø 45 x Ø Ø 45 Ø 48 x Ø Ø 48 Ø 51 x Ø Ø 51 Ø 54 x Ø Ø 54 Ø 57 x Ø Ø 57 Ø 60 x Ø Ø 60 Ø 64 x Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 141

63 . Grinding and polishing tools Ñ.5. Grinding points Grinding points Our points are game for anything Ñ Our grinding points range covers the entire spectrum of grinding applications. You will find points that are perfectly suited to the relevant application in terms of stock removal rate, resulting surface quality and service life no matter, whether you need coarse chipping or fine processing. If you know the conditions, under which the grinding point should be used, you can choose the right raw material, the abrasive at the head of the point, to suit. The characteristics of the various abrasives as their benefits and disadvantages can be found in the table to the right. High-grade corundum pink (EKR) from Page 145 Silicon carbide green (SiCgr) Page 151 High-grade corundum dark red (EKD) i Cutting speeds as a function of tool Ø Rotational speed nmax (rpm) Page 15 High-grade corundum whitebrown (EKWbr) Page 153 High-grade corundum white (EKW) Page 154 Tool diameter d () International hardness according to DIN The hardness is a measurement of the force with which the grinding grit is held by the bonding medium in the grinding point. Hardness is determined using suitable measuring devices. The degree of hardness is indicated by letters and increases in alphabetic order. Blue Stones Page 155 Extremely soft Very soft Soft Medium Hard Very hard Extremely hard A, B, C, D E, F, G H, I, J, K L, M, N, O P, Q, R, S T, U, V, W X, Y, Z Silicon carbide for aluminium (SiC-Alu) Page Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

64 . Grinding and polishing tools Ñ.5. Grinding points Grinding points i You will find the following grinding points at JOKE Unhardened steels, forged steels, low-alloyed steels Weldseams on alloyed and non-alloyed steels Heat- and acid-resistant steels High- and highest-alloyed steels Annealed cast iron, ductile graphite iron Cast iron Hardened steels Hardened steels in tool and mould making Hard-chromium plated steels Aluminium Tungsten carbides Glass Ceramic/resin High-grade corundum pink (EKR) V = m/s Silicon carbide green (SiCgr) V = m/s High-grade corundum dark red (EKD) V = m/s High-grade corundum white-brown (EKWbr) V = 5-40 m/s High-grade corundum white (EKW) V = 0-35 m/s Blue Stones V = m/s Silicon carbide for aluminium (SiC-Alu) V = m/s Key: Very well suited Well suited Suited Not suited Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 143

65 . Grinding and polishing tools Ñ.5. Grinding points Grinding points Useful accessories for every grinding workplace Blowing pen Order No. Price Possibly the smallest blowing pen in the world. It weighs a mere 0 g and regulates the compressed air perfectly. The small aperture of 3 ensures that the air really only goes where it should do. A must for every workplace! For direct connection to a rapid coupling system Dressing stone Order No. Price For dressing and freeing rubber-bonded grinding and polishing points : 33 x 0 x Diamond dressers Order No. Price For dressing ceramic grinding and polishing media (see page 161) : 5 x 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

66 . Grinding and polishing tools Ñ.5. Grinding points EKR grinding points shank Ø.35 x 40, hardness N P Vmax 50 m/s EKR grinding points, shank Ø.35 x 40 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø x 5 10 Ø.35 x Ø 3 x Ø.35 x Ø 4 x 8 80 Ø.35 x Ø 5 x Ø.35 x Ø 6 x Ø.35 x Pointed cylinder Ø 8 x Ø.35 x Wheel Ø 8 x Ø.35 x Ø 10 x Ø.35 x Ø 10 x Ø.35 x Ø 10 x Ø.35 x Sphere Ø Ø.35 x Ø 8 80 Ø.35 x Ø Ø.35 x Pointed arch Ø 5 x Ø.35 x Cone Ø 6 x Ø.35 x Ø 8 x Ø.35 x Ø 10 x Ø.35 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 145

67 . Grinding and polishing tools Ñ.5. Grinding points EKR grinding points shank Ø 3 x 30, hardness N P Vmax 50 m/s EKR grinding points, shank Ø 3 x 30 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø x 5 10 Ø 3 x Ø.5 x Ø 3 x Ø 3 x Ø 3 x Ø 4 x 8 80 Ø 3 x Ø 5 x 6 80 Ø 3 x Ø 5 x Ø 3 x Ø 6 x 6 60 Ø 3 x Ø 6 x Ø 3 x Pointed cylinder Ø 5 x Ø 3 x Ø 8 x Ø 3 x Wheel Ø 4 x Ø 3 x Ø 5 x 3 80 Ø 3 x Ø 8 x 100 Ø 3 x Ø 9 x 100 Ø 3 x Ø 9 x 3 80 Ø 3 x Ø 10 x Ø 3 x Cone Ø 3.3 /. x Ø 3 x Ø 4.4 / 3.0 x Ø 3 x Ø 7.0 / 3.5 x 6 80 Ø 3 x Sphere Ø Ø 3 x Ø 4 80 Ø 3 x Ø 5 80 Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

68 . Grinding and polishing tools Ñ.5. Grinding points P Vmax 50 m/s EKR grinding points shank Ø 3 x 30, hardness N EKR grinding points, shank Ø 3 x 30 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Ø 8 80 Ø 3 x Ø Ø 3 x Trapeze Ø 3. /.0 x Ø 3 x Ø 5.0 /.0 x Ø 3 x Ø 5.0 / 3.0 x 5 80 Ø 3 x Ø 7.0 / 5.0 x 6 80 Ø 3 x Ø 8.0 / 3.5 x 4 80 Ø 3 x Pointed arch Ø 4.3 x Ø 3 x Ø 5 x Ø 3 x Ø 6 x 8 80 Ø 3 x Ø 6 x Ø 3 x Barrel Ø 3 x Ø 3 x Ø 4 x 5 80 Ø 3 x Ø 6 x 8 80 Ø 3 x Rhombus Ø 7 x Ø 3 x Mushroom Ø 8 x Ø 3 x Cone Ø 6 x Ø 3 x Ø 8 x Ø 3 x Ø 10 x Ø 3 x Wheel Ø 5 x Ø 3 x Ø 6 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 147

69 . Grinding and polishing tools Ñ.5. Grinding points EKR grinding points shank Ø 6 x 40, hardness N P Vmax 50 m/s EKR grinding points, shank Ø 6 x 40 Head dimensions Grit size Shank dimensions Order No. Cylinder Ø 3 x Ø 6 x Ø 4 x 8 80 Ø 6 x pieces 0 pieces Ø 5 x Ø 6 x Ø 6 x Ø 6 x Ø 8 x Ø 6 x Ø 8 x Ø 6 x Ø 10 x Ø 6 x Ø 10 x 0 60 Ø 6 x Ø 10 x 3 60 Ø 6 x Ø 13 x Ø 6 x Ø 13 x 0 46 Ø 6 x Ø 16 x Ø 6 x Ø 16 x 0 46 Ø 6 x Ø 16 x 3 46 Ø 6 x Ø 0 x 0 36 Ø 6 x Ø 0 x 5 36 Ø 6 x Ø 0 x Ø 6 x Ø 5 x 0 36 Ø 6 x Ø 5 x 5 36 Ø 6 x Wheel Ø 13 x 3 80 Ø 6 x Ø 16 x 4 60 Ø 6 x Ø 0 x 6 60 Ø 6 x Ø 5 x 6 60 Ø 6 x Ø 3 x 8 46 Ø 6 x Ø 40 x Ø 6 x Ø 40 x 0 30 Ø 6 x Sphere Ø 6 60 Ø 6 x Ø 8 60 Ø 6 x Ø Ø 6 x Ø Ø 6 x Ø Ø 6 x Ø 0 36 Ø 6 x Ø 5 36 Ø 6 x Ø 3 30 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

70 . Grinding and polishing tools Ñ.5. Grinding points EKR grinding points shank Ø 6 x 40, hardness N P Vmax 50 m/s EKR grinding points, shank Ø 6 x 40 Head dimensions Grit size Shank dimensions Order No. Pointed arch Ø 8 x Ø 6 x Ø 10 x 0 60 Ø 6 x Ø 13 x 0 46 Ø 6 x pieces 0 pieces Ø 0 x 3 36 Ø 6 x Cone Ø 16 x 3 46 Ø 6 x Ø 16 x Ø 6 x Ø 0 x 3 36 Ø 6 x Ø 0 x Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 149

71 . Grinding and polishing tools Ñ.5. Grinding points EKR grinding points shank Ø 3 x 40, hardness N Shanks made from rustproof steel P Vmax 50 m/s NEW! EKR grinding points, shank Ø 3 x 40, rustproof steel Head dimensions Grit size Shank dimensions Order No. 50 pieces 10 pieces Cylinder Ø x 5 60 Ø 3 x Ø 3 x 5 60 Ø 3 x Ø 4 x 8 60 Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 7 x Ø 3 x EKR grinding points shank Ø 3 x 60, hardness N Shanks made from rustproof steel P Vmax 35 m/s EKR grinding points, shank Ø 3 x 60, rustproof steel Head dimensions Grit size Shank dimensions Order No. 50 pieces 10 pieces Cylinder Ø x 5 60 Ø 3 x Ø 3 x 5 60 Ø 3 x Ø 4 x 8 60 Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 7 x Ø 3 x Sphere Ø 3 60 Ø 3 x Ø 5 60 Ø 3 x Ø 6 60 Ø 3 x Pointed arch Ø 3 x 6 60 Ø 3 x Cone Ø 6 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

72 . Grinding and polishing tools Ñ.5. Grinding points SiCgr grinding points shank Ø.35 x 38, hardness P P Vmax 50 m/s SiCgr grinding points, shank Ø.35 x 38 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø x 5 10 Ø.35 x Ø 3 x Ø.35 x Ø 4 x Ø.35 x Ø 5 x Ø.35 x Ø 6 x Ø.35 x Pointed cylinder Ø 8 x Ø.35 x Rounded barrel Ø 6 x Ø.35 x Ø 6 x Ø.35 x Wheel Ø 8 x Ø.35 x Ø 10 x Ø.35 x Ø 10 x Ø.35 x Ø 10 x Ø.35 x Sphere Ø Ø.35 x Ø Ø.35 x Ø Ø.35 x Pointed arch Ø 5 x Ø.35 x Pointed cone Ø 6 x Ø.35 x Cone Ø 8 x Ø.35 x Ø 10 x Ø.35 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 151

73 . Grinding and polishing tools Ñ.5. Grinding points EKD grinding points shank Ø 3 x 40, hardness N P Vmax 50 m/s EKD grinding points, shank Ø 3 x 40 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø x Ø 3 x Ø 4 x Ø 3 x Ø 5 x Ø 3 x Ø 8 x Ø 3 x Pointed cylinder Ø 7 x Ø 3 x Rounded barrel Ø 3 x Ø 3 x Ø 4 x Ø 3 x Ø 6 x Ø 3 x Ø 6 x Ø 3 x Wheel Ø 5 x 100 Ø 3 x Ø 10 x 100 Ø 3 x Ø 10 x Ø 3 x Sphere Ø Ø 3 x Ø Ø 3 x Ø Ø 3 x Cone Ø 5 x Ø 3 x Cone Ø 8 x Ø 3 x Ø 10 x Ø 3 x Mushroom Ø 10 x 100 Ø 3 x Drop Ø 8 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

74 . Grinding and polishing tools Ñ.5. Grinding points EKWbr grinding points shank Ø 3 x 30, hardness O/P P Vmax 35 m/s EKWbr grinding points, shank Ø 3 x 30 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø 3 x Ø 3 x Ø 4 x 8 80 Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 8 x Ø 3 x Ø 10 x Ø 3 x Ø 10 x Ø 3 x Ø 10 x Ø 3 x Ø 13 x Ø 3 x Ø 13 x Ø 3 x Wheel Ø 13 x 3 80 Ø 3 x Ø 16 x 4 60 Ø 3 x Ø 0 x 6 60 Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 153

75 . Grinding and polishing tools Ñ.5. Grinding points EKW grinding points shank Ø 3 x 40, hardness N Shanks made from rustproof steel P Vmax 50 m/s NEW! EKW grinding points, shank Ø 3 x 40, rustproof steel Head dimensions Grit size Shank dimensions Order No. 50 pieces 10 pieces Cylinder Ø x 5 80 Ø 3 x Ø 3 x 5 80 Ø 3 x Ø 4 x 8 80 Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 7 x Ø 3 x EKW grinding points shank Ø 3 x 60, hardness N Shanks made from rustproof steel P Vmax 35 m/s EKW grinding points, shank Ø 3 x 60, rustproof steel Head Grit size Shank Order No. 50 pieces 10 pieces Cylinder Ø x 5 80 Ø 3 x Ø 3 x 5 80 Ø 3 x Ø 4 x 8 80 Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 7 x Ø 3 x Sphere Ø 3 80 Ø 3 x Ø 5 80 Ø 3 x Ø 6 80 Ø 3 x Pointed arch Ø 3 x 6 80 Ø 3 x Cone Ø 6 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

76 . Grinding and polishing tools Ñ.5. Grinding points Blue Stones grinding points shank Ø 3 x 40 P Vmax 50 m/s Blue Stones grinding points, shank Ø 3 x 40 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø x 5 10 Ø 3 x Ø 3 x 6 10 Ø 3 x Ø 4 x 8 10 Ø 3 x Ø 5 x 6 10 Ø 3 x Ø 5 x Ø 3 x Ø 6 x 6 10 Ø 3 x Ø 6 x Ø 3 x Ø 8 x Ø 3 x Ø 10 x Ø 3 x Wheel Ø 4 x Ø 3 x Ø 8 x Ø 3 x Ø 13 x 3 10 Ø 3 x Ø 13 x 6 10 Ø 3 x Sphere Ø 3 x 3 10 Ø 3 x Ø 5 x 5 10 Ø 3 x Ø 6 x 6 10 Ø 3 x Pointed arch Ø 3 x 6 10 Ø 3 x Ø 5 x Ø 3 x Rounded arch Ø 6 x Ø 3 x Pointed cone Ø 6 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 155

77 . Grinding and polishing tools Ñ.5. Grinding points SiC-Alu grinding points shank Ø 3 x 30 / shank Ø 6 x 40 NEW! Ñ SiC-Alu grinding points These grinding points were especially developed for processing aluminium. The high plasticity of aluminium results in the wrong tool being smeared or clogged up during processing. Thanks to their special structure design, these grinding points offer an extremely long service life, as their pores do not become clogged during processing. The self-sharpening effect is reinforced by the special impregnation of these grinding points. Particularly suitable for:: non-ferrous metals (especially aluminium) hard-chromium plated steels high- and highest-alloyed steels Also suitable for: tempered and hardened steels P Vmax 50 m/s SiC-Alu grinding points, shank Ø 3 x 30 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø 4 x 8 80 Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 8 x Ø 3 x Ø 10 x Ø 3 x SiC-Alu grinding points, shank Ø 6 x 40 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Cylinder Ø 10 x Ø 6 x Ø 10 x 0 80 Ø 6 x Ø 13 x Ø 6 x Ø 13 x 3 80 Ø 6 x Ø 16 x Ø 6 x Ø 16 x 3 80 Ø 6 x Ø 0 x 0 80 Ø 6 x Ø 0 x 5 80 Ø 6 x Ø 0 x Ø 6 x Ø 3 x 3 80 Ø 6 x Ø 40 x 0 80 Ø 6 x Cone Ø 0 x Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

78 . Grinding and polishing tools Ñ.5. Grinding points Grinding points Sets Ñ Grinding point sets Our grinding point sets offer a range of the most coonly used shapes and grit sizes of the various grinding media. Grinding point sets Shank dimensions Grinding point set high-grade corundum pink (EKR) Ø 3 x Contents: 36 pieces Order No. Set price Grinding point set silicon carbide green (SiCgr) Ø.35 x Contents: 19 pieces Grinding point set high-grade corundum dark red (EKD) Ø 3 x Contents: 0 pieces Grinding point set high-grade corundum white-brown (EKWbr) Ø 3 x Contents: 14 pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 157

79 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools Rubber-bonded polishing points series 70 Soft rubber bond, shank Ø 3 x 30 Ñ Rubber-bonded polishing points series 70 The special features of the soft rubber bond of the series 70 is a very soft cut, high surface quality and very low chipping performance. The outstanding elasticity of the soft rubber bond results in a relatively low cutting speed for the vibration-free operation. These tools (from Ø 8 ) are marked with a white ring on the shank side. Cutting speed Vmax: 15 m/s Rubber-bonded polishing points series 70, shank Ø 3 x 30 P Vmax 15 m/s Head dimensions Grit size Shank dimensions Order No. Ø 4 x 8 80 grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x pieces å ç é è 0 pieces Ø 5 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è Ø 6 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è Ø 8 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è Ø 10 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è Ø 13 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è Ø 13 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è Ø 16 x grey Ø 3 x red Ø 3 x brown Ø 3 x green Ø 3 x å ç é è 158 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

80 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools Rubber-bonded polishing points series 70 Soft rubber bond, shank Ø 6 x 40 Rubber-bonded polishing points series 70, shank Ø 6 x 40 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Ø 8 x grey Ø 6 x P Vmax 15 m/s 10 red Ø 6 x brown Ø 6 x green Ø 6 x Ø 10 x 0 80 grey Ø 6 x red Ø 6 x brown Ø 6 x green Ø 6 x Ø 13 x 0 80 grey Ø 6 x red Ø 6 x brown Ø 6 x green Ø 6 x Ø 16 x 0 80 grey Ø 6 x red Ø 6 x brown Ø 6 x green Ø 6 x Ø 16 x 3 80 grey Ø 6 x red Ø 6 x brown Ø 6 x green Ø 6 x Ø 0 x 0 80 grey Ø 6 x red Ø 6 x brown Ø 6 x green Ø 6 x Sets Grit size Order No. Set price å ç é è Rubber-bonded polishing points series 70, 8 pieces 80 grey red brown green Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 159

81 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools Rubber-bonded polishing points series 700 Hard rubber bonding shank Ø 3 x 30 Ñ Rubber-bonded polishing points series 700 Thanks to their bond and grit combination, these fine grinding and polishing tools with hard rubber bonding are particularly suited for fine tuning and casting, hardened or unhardened alloy or non-alloy steels as well as all other grinding materials. These tools do not clog and deliver high efficiency with medium grinding pressure. Cutting speed Vmax: 50 m/s P Vmax 50 m/s Rubber-bonded polishing points series 700, shank Ø 3 x 30 Head dimensions Grit size Shank dimensions Order No. 50 pieces 0 pieces Ø 4 x Ø 3 x Ø 5 x Ø 3 x Ø 6 x Ø 3 x Ø 7 x Ø 3 x Ø 8 x Ø 3 x Ø 10 x Ø 3 x Ø 10 x Ø 3 x Ø 10 x Ø 3 x Ø 13 x Ø 3 x Ø 13 x Ø 3 x Ø 13 x Ø 3 x Ø 16 x Ø 3 x Ø 16 x Ø 3 x Ø 0 x Ø 3 x Set Grit size Order No. Set price Rubber-bonded polishing points series 700, 14 pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

82 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools NEW! Elastic polishing points shank Ø.35 x 40 Ñ Elastic polishing points These new points are highly suitable for working on hard and tough materials, such as titanium or ceramic. They leave a matt finish with excellent coarseness on materials. Regardless of the various bonds, these points can be easily trued. Recoended Speed: 5,000-10,000 rpm Elastic polishing points, shank Ø.35 x 40 Shape Head dimensions Grit size Shank dimensions P nmax 5,000-10,000 rpm Silicone polishing points, soft bond Tip Ø 4.5 x 1 coarse / K 80 Ø.35 x Ø 4.5 x 1 medium / K 150 Ø.35 x Ø 4.5 x 1 fine / K 40 Ø.35 x Order No. Price Cylinder Ø 6 x 11.5 coarse / K 80 Ø.35 x Ø 6 x 11.5 medium / K 150 Ø.35 x Ø 6 x 11.5 fine / K 40 Ø.35 x Technical polishing points, hard bond Tip Ø 3.3 x 7.5 coarse / K 80 Ø.35 x Ø 3.3 x 7.5 medium / K 150 Ø.35 x Ø 3.3 x 7.5 fine / K 40 Ø.35 x Cylinder Ø 10 x 1 coarse / K 80 Ø.35 x Ø 10 x 1 medium / K 150 Ø.35 x Ø 10 x 1 fine / K 40 Ø.35 x Diamond polishing points, medium bond Tip Ø 4 x 13 coarse / K 80 Ø.35 x Ø 4 x 13 medium / K 150 Ø.35 x Ø 4 x 13 fine / K 40 Ø.35 x Ceramic-bonded diamond polishing points Dia Stone shank Ø 3 x 30 Ceramic-bonded diamond polishing points Dia Stone, shank Ø 3 x 30 Shape Head dimensions Shank dimensions Order No. 5 pieces These polishing points consist of a ceramic body with natural diamonds. They are perfectly suited for precision processes in tool and mould making. Very good true running characteristics. Best results are achieved at 10,000 rpm when used with a fluid. Dress with Dia dresser (see page 144). Cylinder Ø 4 x 13 Ø 3 x Ø 6 x 13 Ø 3 x Conical Ø 4 /.8 x 11 Ø 3 x Wheel Ø 15 x 3.5 Ø 3 x Lens Ø x.1 Ø 3 x

83 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools Fibre laminated polishing points shank Ø 3 x 40 NEW! Ñ Fibre-laminated polishing points These new, fibre-laminated grinding points produce excellent surfaces with high stock removal. The tools do not clog, offer a very good service life, grind and polish simultaneously and are vibration-free. They are ideal for hard chromium plated steels and have proved their worth with all difficult steels in aeronautical, motor and plant construction. The points are available in two bonding strengths and different grit sizes: Hard: Aggressive for high stock removal and fine surfaces. Soft: Polishing with low stock removal and deburring. P Vmax 30 m/s Fibre-laminated grinding points, corundum, shank Ø 3 x 40 Head dimensions Bonding Grite size Shank dimensions Order No. 50 pieces 10 pieces Cylinder Ø 6 x 6 hard 80 Ø 3 x Ø 6 x 6 soft 80 Ø 3 x Ø 6 x 6 soft 180 Ø 3 x Ø 6 x 13 hard 80 Ø 3 x Ø 6 x 13 soft 80 Ø 3 x Ø 6 x 13 soft 180 Ø 3 x Ø 10 x 19 hard 54 Ø 3 x Ø 10 x 19 hard 80 Ø 3 x Ø 10 x 19 soft 80 Ø 3 x Ø 10 x 19 soft 180 Ø 3 x Ø 13 x 13 hard 80 Ø 3 x Ø 13 x 13 soft 80 Ø 3 x Ø 13 x 13 soft 180 Ø 3 x Sphere Ø 13 soft 80 Ø 3 x Ø 13 soft 180 Ø 3 x Pointed cone Ø 10 x 19 hard 54 Ø 3 x Ø 10 x 19 hard 80 Ø 3 x Ø 10 x 19 soft 80 Ø 3 x Ø 10 x 19 soft 180 Ø 3 x Cone Ø 13 x 19 hard 54 Ø 3 x Ø 13 x 19 hard 80 Ø 3 x Ø 13 x 19 soft 80 Ø 3 x Ø 13 x 19 soft 180 Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

84 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools NEW! Fibre-laminated grinding wheels Fibre-laminated grinding wheels, corundum Bonding Grit size Bore Ø Order No. 50 pieces 10 pieces Ø 5 x 1.6 soft 80 Ø soft 10 Ø soft 180 Ø soft 30 Ø Ø 5 x 3. soft 80 Ø soft 10 Ø soft 180 Ø soft 30 Ø matching mandrels Type For Ø Shank dimensions Order No. 10 pieces 14 Ø 3.0 Ø Ø 3.0 Ø Lapping and polishing rubber for self-made tools Lapping and polishing rubber for self-made tools Grit size Type Order No. 0 pieces Ø 6 x SG Ø 1 x SG Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 163

85 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX tool assortment The assortment for tool and mould makers Ñ The bond is made of oil-resistant chemical rubber. In contrast to hard grinding wheels, the CRATEX bond has a unique cushioned action ensuring soft, smooth and free cutting. With harder materials, CRATEX yields a clean, polishable cut, free from corrugation and discoloration. CRATEX grinds and polishes soft materials and plastics without tearing. It resists clogging and smearing and does not result in any glassy points. CRATEX can be used for dry and wet grinding. The tools are insensitive to all coon grinding cooling media and rust protectors and to oil. Even more gentle work can be achieved in conjunction with polishing pastes. (M) Medium dark brown grit size 90 For light deburring and for general finishing, yielding a surface quality between preliminary grinding and polishing. CRATEX M is recoended for the working states following rough grinding of brass, copper, aluminium and stainless steel, etc. It is eminently suitable for polishing of moulds and for performing general finishing work. (F) Fine light brown grit size10 A fine, needle-sharp grit size for polishing. A clean, polished surface is achieved very rapidly using this grit size. Particularly suitable for highalloyed steels, gold and other noble metals, for which a good surface is required. Typical applications: Smoothing and polishing of casting moulds, dies and other production tools, smoothing of edges on punched or sheared parts or glass, lapping of welded seams after rough grinding: sharpening of cutting dies, deburring and smoothing of plastic workpieces, reworking injection channels; polishing of moulds. CRATEX tools are available in four standard grit sizes, which each have a different colour for ease of differentiation: (C) Coarse dark green grit size 40 For coarse grinding and deburring. Cuts rapidly without clogging. CRATEX C is used for soft materials such as brass, copper and aluminium and leaves a clean, smooth surface after rough casting. (XF) Extra fine light green grit size 40 A microfine grit for achievement of a high gloss polish or final polishing on all metals. i Maximum cutting speeds and best operating speeds For most efficient results and good surface quality, operating speeds shall not exceed the maximum safety speeds mentioned in the instruction sheets of the relevant CRATEX tools. You will work more efficiently and achieve the best possible surface quality. The maximum cutting speed must never be exceeded. The rpm values for small CRATEX wheels up to Ø 5 are based on a producing shaft length between 10 and 15. If the protruding shaft length exceeds 15, the speed must be reduced by 0 % per Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

86 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX Rubber-bonded grinding wheels for elastic grinding CRATEX Rubber-bonded grinding wheels Bore Ø Type Max. perm. speed Grit size Order No. Price Ø 38 x ,000 M-medium Ø 38 x ,000 F-fine Ø 38 x ,000 C-coarse Ø 38 x ,000 M-medium Ø 38 x ,000 F-fine Ø 38 x ,000 M-medium Ø 38 x ,000 C-coarse Ø 50 x ,500 C-coarse Ø 50 x ,500 F-fine Ø 50 x ,500 M-medium Ø 50 x ,500 C-coarse Ø 50 x ,500 F-fine Ø 50 x ,500 C-coarse Ø 50 x ,500 M-medium Ø 50 x ,500 F-fine Ø 50 x ,500 XF-extra fine Ø 63.5 x C-coarse Ø 63.5 x M-medium Ø 63.5 x F-fine Ø 75 x ,000 C-coarse Ø 75 x ,000 M-medium Ø 100 x ,50 C-coarse Ø 100 x ,50 F-fine Ø 15 x ,00 XF-extra fine matching mandrels Type Bore Ø Max. wheel size Shank dimensions Order No. 4 Ø Ø 38 x 3 Ø Ø 6.0 Ø 75 x 9.5 Ø Ø 6.0 Ø 75 x 0 Ø pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 165

87 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX rubber-bonded abrasives for shank mounting CRATEX rubber-bonded abrasive for shank mounting Type matching mandrels Grit size Order No. 50 pieces Wheel, tapered Ø 16.0 x.5 1,, 3, 5 C-coarse Ø 16.0 x.5 1,, 3, 5 M-medium Ø 16.0 x.5 1,, 3, 5 F-fine Ø 16.0 x.5 1,, 3, 5 XF-extra fine Ø 5.0 x ,, 3, 5 C-coarse Ø 5.0 x ,, 3, 5 M-medium Ø 5.0 x ,, 3, 5 F-fine Ø 5.0 x ,, 3, 5 XF-extra fine Point, cylindrical shape Ø 6.0 x C-coarse Ø 6.0 x M-medium Ø 6.0 x F-fine Ø 6.0 x XF-extra fine Ø 6.0 x C-coarse Ø 6.0 x M-medium Ø 6.0 x F-fine Ø 6.0 x XF-extra fine Points, bullet-shape Ø 7.0 x C-coarse Ø 7.0 x M-medium Ø 7.0 x F-fine Ø 7.0 x XF-extra fine Ø 9.5 x C-coarse Ø 9.5 x M-medium Ø 9.5 x F-fine Ø 9.5 x XF-extra fine Ø 9.5 x C-coarse Ø 9.5 x M-medium Ø 9.5 x F-fine Ø 9.5 x XF-extra fine Ø 1.5 x C-coarse Ø 1.5 x M-medium Ø 1.5 x F-fine Ø 1.5 x XF-extra fine Wheels Ø 16.0 x ,, 3, 5 C-coarse Ø 16.0 x ,, 3, 5 M-medium Ø 16.0 x ,, 3, 5 F-fine Ø 16.0 x ,, 3, 5 XF-extra fine Ø 16.0 x ,, 3, 5 C-coarse Ø 16.0 x ,, 3, 5 M-medium Ø 16.0 x ,, 3, 5 F-fine Ø 16.0 x ,, 3, 5 XF-extra fine Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

88 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX rubber-bonded abrasives for shank mounting CRATEX rubber-bonded abrasive for shank mounting Type matching mandrels Grit size Order No. 50 pieces Wheel (cont.) Ø.0 x ,, 3, 5 C-coarse Ø.0 x ,, 3, 5 M-medium Ø.0 x ,, 3, 5 F-fine Ø.0 x ,, 3, 5 XF-extra fine Ø.0 x ,, 3, 5 C-coarse Ø.0 x ,, 3, 5 M-medium Ø.0 x ,, 3, 5 F-fine Ø.0 x ,, 3, 5 XF-extra fine Ø 5.0 x ,, 3, 5 C-coarse Ø 5.0 x ,, 3, 5 M-medium Ø 5.0 x ,, 3, 5 F-fine Ø 5.0 x ,, 3, 5 XF-extra fine Cone Ø 16/6 x M-medium Ø 16/6 x F-fine Ø /6 x C-coarse Cylinder Ø.0 x M-medium Ø.0 x F-fine Ø.0 x XF-extra fine Cylinder, pointed Ø 5.0 x M-medium CRATEX mandrels Type Shank dimensions Bore dimensions Order No. 11 Ø.35 Ø pieces 1 Ø 3.0 Ø Ø 3.0 Ø Ø 6.0 Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 167

89 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX rubber-bonded sticks for hand (filing machine) use CRATEX rubber-bonded sticks Type Grit size Order No. 0 pieces Square 6 x 6 x C-coarse x 6 x M-medium x 6 x F-fine x 6 x XF-extra fine x 1.5 x C-coarse x 1.5 x M-medium x 1.5 x F-fine x 1.5 x XF-extra fine x 18 x C-coarse x 18 x M-medium x 18 x F-fine x 18 x XF-extra fine Rectangular 5 x 3 x C-coarse x 3 x M-medium x 3 x F-fine x 6 x C-coarse x 6 x M-medium x 6 x F-fine x 9.5 x C-coarse x 9.5 x M-medium x 9.5 x F-fine x 9.5 x XF-extra fine x 1.5 x M-medium x 1.5 x F-fine Round Ø 4.8 x M-medium Ø 4.8 x F-fine Ø 6.0 x C-coarse Ø 6.0 x M-medium Ø 6.0 x F-fine Ø 6.0 x XF-extra fine Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

90 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX rubber-bonded sticks for hand (filing machine) use CRATEX rubber-bonded sticks Type Grit size Order No. 0 pieces Round (cont.) Ø 9.5 x M-medium Ø 9.5 x F-fine Ø 9.5 x XF-extra fine Ø 1.5 x C-coarse Ø 1.5 x M-medium Ø 1.5 x F-fine Ø 1.5 x XF-extra fine Ø 16.0 x C-coarse Ø 16.0 x M-medium Ø 16.0 x F-fine Ø 18.0 x C-coarse Ø 18.0 x M-medium Ø 18.0 x F-fine Ø.0 x M-medium Ø.0 x F-fine Ø 5.0 x C-coarse Ø 5.0 x F-fine Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 169

91 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX Sets CRATEX Set 796 Order No. Price Contents in plastic storage case: 00 wheels shape 100 points shape points shape 8 00 wheels shape wheels shape 74 equally assorted in the four CRATEX grit sizes 4 point mandrels shape 11 (Ø.35 ) 4 point mandrels shape 1 (Ø 3 ) 4 point mandrels shape 1 (Ø.35 ) 4 point mandrels shape (Ø 3 ) CRATEX Set 778 Order No. Price Contents in plastic storage case: 8 points shape 4 8 points shape 6 8 points shape 8 8 points shape 10 8 points shape 11 8 points shape 1 8 points shape 14 8 points shape 15 equally assorted in the four CRATEX grit sizes point mandrels shape 1 (Ø 3 ) point mandrels shape 13 (Ø 3 ) Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

92 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX Sets CRATEX Set 777 Order No. Price Contents in plastic storage case: 8 wheels shape 16 points shape 6 16 points shape 8 8 points shape 10 8 wheels shape wheels shape 74 8 wheels shape 86 equally assorted in the four CRATEX grit sizes point mandrels shape (Ø 3 ) point mandrels shape 1 (Ø 3 ) CRATEX Set 8 Order No. Price Contents in storage case: 4 blocks shape blocks shape sticks shape sticks shape 066 equally assorted in the four CRATEX grit sizes CRATEX Set 6 Order No. Price Contents in storage case: 4 blocks shape wheels shape cones shape cylinders shape wheels shape 04 equally assorted in the four CRATEX grit sizes 1 cone mandrel shaft shape 31 1 wheel holder shape

93 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools CRATEX mandrels and grinding wheel holders CRATEX mandrels Type Shank dimensions 30 Bore dimensions Order No. 11 Ø.35 Ø pieces Ø 3.0 Ø Ø 3.0 Ø Ø 6.0 Ø CRATEX grinding wheel holder Type Shank dimensions 8 4 Bore dimensions Max. disc size Order No. 10 pieces 1 Ø.35 Ø Ø 37.5 x Ø 3.0 Ø Ø 37.5 x Ø 6.0 Ø Ø 37.5 x Ø 3.0 Ø Ø 38 x Ø.35 Ø Ø 37.5 x Ø 3.0 Ø Ø Ø 6.0 Ø Ø Ø 6.0 Ø 6.0 Ø 75 x Ø 6.0 Ø 6.0 Ø 75 x Ø 6.0 Ø 1/4 Ø 75 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

94 . Grinding and polishing tools Ñ.6. Rubber-bonded grinding tools Image: Manfred Esser Team Export Ñ Danny and Christian - they are two home-grown JOKE characters. Our partners all over Europe and worldwide are very close to their hearts. Multicultural to them means not only a love for languages, but above all of people and their different mentalities. Almost no matter, which planet they are from... Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 173

95 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Grinding and polishing stones i Overview of JOKE grinding and polishing stones JOKE Gesswein Boride Type Page Tool steel Steels Erosion structures Stainless steel Aluminium Non-ferrous metals JB JB 176 Royal S 177 C-AS 178 EDM blue 179 EDM 180 RA 18 OT 183 DF 184 MF 186 Super Soft 188 WP 189 SF 189 AM CS-HD 19 AB 193 T 194 TH 195 Orange EDM 196 AO 198 RB 199 AM- 00 AS-9 0 T4 03 Gold 04 DIE Stone 05 CS-M 06 PC 07 CS 08 RO-MED 09 Grinding and polishing stones oil (fluid), 1 l Order No. Preis The oil/fluid suitable for all grinding and polishing stones. Very economical to use and practically odourless. The use of this fluid prevents clogging of stones during processing. The grinding tools cut better, producing a brilliant, uniform surface

96 . Grinding and polishing tools Ñ.7. Grinding and polishing stones or Ñ? Gesswein Boride Grinding and polishing stones The choice between Gesswein or Boride should predominantly be based on personal preference, previous experience and individual requirements for grinding and polishing stones. One thing, however, is certain: Both of these leading stone producers offer TOP quality. Gesswein stands for over 80 years of quality and reliability. The young Boride brand already boasting 30 years of market experience convinces mainly with its excellent service and has thus managed to establish itself in the market next to the giant Gesswein. We think you should have a choice from both prograes. And for special applications, we also offer you exclusive JOKE stones. A fine selection, which rounds off our grinding and polishing stone section. Ñ You will find: JOKE stones Pages Gesswein stones Pages Boride stones Pages Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 175

97 . Grinding and polishing tools Ñ.7. Grinding and polishing stones JOKE JB grinding and polishing stones JOKE JB1 grinding and polishing stones Grit size Order No. 60 pieces s These grinding and polishing stones are made of pink highgrade corundum in a soft bond. They can be used dry. When used without oil, the grinding residues are simply removed with a brush. The JB1 grinding and polishing stones are suitable for both soft and hard materials and are used, for example, on milled or ground surfaces and contours. 4 x 4 x x 3 x Ultrasonic x 3 x x 6 x x 10 x JOKE JB grinding and polishing stones Grit size Order No. 60 pieces s These stones of sulphured high-grade corundum are particularly suitable for grinding eroded surfaces and contours. The hard bond guarantees a very high edge strength for the stones and at the same time prevents excessive clogging. The additional use of abrasive stone oil (fluid) is recoended. 6 x 3 x x 3 x Ultrasonic x 6 x x 10 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

98 . Grinding and polishing tools Ñ.7. Grinding and polishing stones JOKE Royal S grinding and polishing stones JOKE Royal S grinding and polishing stones Grit size Colour Order No. 60 pieces s 1 piece These aluminium oxide grinding stones with a special oil impregnation have a very hard bond. The stones are used for finishing soft and hard metals. The very mild surface finish allows for top surfaces through to superfinish. Contours can be retained easily. 6 x 3 x yellow blue green brown black Ultrasonic 13 x 3 x yellow blue Bonding Soft Hard 600 green brown black x 6 x yellow Stock removal Slow Fast 400 blue green brown black Wear x 10 x yellow Slow Fast 400 blue green Application brown black Preparatory work Finishing Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 177

99 . Grinding and polishing tools Ñ.7. Grinding and polishing stones JOKE C-AS grinding and polishing stones NEW! JOKE C-AS grinding and polishing stones Grit size Order No. 60 pieces s JOKE C-AS stones are made from special fused aluminium oxide white with sulfurised graphite to prevent tearing. The bond is very hard and therefore edge-stable. The use with a fluid or stone oil is recoended. Ultrasonic 4 x 4 x Bonding Soft Hard 6 x 3 x Stock removal Slow Fast Wear Slow Fast 6 x 6 x Application Preparatory work Finishing x 3 x x 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

100 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein EDM blue grinding and polishing stones Gesswein EDM blue grinding and polishing stones Grit size Type Order No. 60 pieces s Premium aluminium oxide stones. The hardest Gesswein stones. Ideal for use with hand-filing machines and ultrasonic polishing systems. As these stones are a lot harder than the EDM series, they are better suited for the quick removal of hard erosion skin. Even better results can be achieved through the use of a fluid. Ultrasonic 4 x 4 x EDM 61B EDM 6B EDM 6B EDM 63B EDM 64B EDM 66B x 3 x EDM 611B EDM 6181B Bonding 0 EDM 601B Soft Hard 30 EDM 6301B EDM 6401B EDM 6601B Stock removal Slow Fast 6 x 6 x EDM 61B EDM 618B EDM 60B EDM 630B Wear 400 EDM 640B EDM 660B Slow Fast 13 x 1.6 x EDM 610B EDM 6180B Application Preparatory work Finishing 0 EDM 600B EDM 6300B EDM 6400B EDM 6600B x 3 x EDM 613B EDM 6183B EDM 603B EDM 6303B EDM 6403B EDM 6603B x 6 x EDM 614B EDM 6184B EDM 604B EDM 6304B EDM 6404B EDM 6604B Ø 6 x EDM E1B EDM E18B EDM E30B

101 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein EDM grinding and polishing stones Gesswein EDM grinding and polishing stones Grit size Type Order No. 60 pieces s A specific application involves grinding of moulds manufactured by electroerosion. The sharp and easy-cutting premium aluminium oxide strips the extremely hard surface layer that remains after electroerosion in a very short time. EDM stones are very hard and therefore inherently stable and do not clog. Further surface refinement can be achieved with the subsequent use of finer grit sizes of DF quality. 4 x 4 x x 3 x Ultrasonic Bonding Soft Hard 6 x 6 x Stock removal Slow Fast Wear Slow Fast 10 x 10 x Application x 1.6 x Preparatory work Finishing x 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

102 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein EDM grinding and polishing stones Gesswein EDM grinding and polishing stones Grit size Type Order No. 60 pieces 13 x 6 x s x 5 x x 5 x Ø 6 x E E E E E E Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 181

103 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein RA grinding and polishing stones Gesswein EDM grinding and polishing stones Grit size Type Order No. 60 pieces s RA stones are made from aluminium oxide, bonded with a unique resin bond. This bond results in a high resistance to breakage and a typical buffer effect between the individual grinding particles. Therefore, a finer surface can be achieved than expected for the grit size. For that reason, RA stones are also available in coarser grit sizes. The RA grinding and polishing stones keep their shape extraordinarily well and their service life is far superior to that of stones with normal bonding. The surface finishes tat can be achieved with these stones is excellent. For manual use or with hand-filing machines and ultrasonic cleaning systems. 4 x 4 x RA RA RA RA x 3 x RA RA RA RA RA RA Tip: Particularly good for use for difficult to reach positions in slots and bridges. 6 x 6 x RA RA RA Ultrasonic 0 RA RA RA Bonding Soft Hard 13 x 1.6 x RA RA RA RA Stock removal Slow Fast 30 RA RA x 3 x RA Wear Slow Fast 10 RA RA RA RA Application RA RA Preparatory work Finishing 13 x 6 x RA RA RA RA RA RA RA Ø 4 x RA Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

104 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein OT grinding and polishing stones Gesswein OT grinding and polishing stones Grit size Type Order No. 60 pieces s These hard aluminium oxide stones are ideal for fine work on both hard and soft metals and in particular for the finishing of slots and points that are difficult to reach. A sophisticated oil impregnation ensures that the OT stones do not clog up and show a very good grinding pattern. 4 x 4 x Ultrasonic 4 x 4 x Bonding Soft Hard 6 x 3 x Stock removal Slow Fast Wear 6 x 6 x Slow Fast Application Preparatory work Finishing 13 x 3 x x 6 x x 13 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 183

105 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein DF grinding and polishing stones Gesswein DF grinding and polishing stones Grit size Type Order No. 60 pieces s The original diemaker stones. Medium hard aluminium oxide combined with a semi-soft bond results in a DF stone quality with high dimensional stability and existing contours are therefore easily rectified. They are mainly used for cutting and punching tools, but are also very suitable for mould and tool making. 4 x 4 x Ultrasonic 6 x 1.6 x Bonding Soft Hard x 3 x Stock removal Slow Fast Wear Slow Fast 6 x 6 x Application Preparatory work Finishing x 10 x x 1.6 x x 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

106 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein DF grinding and polishing stones Gesswein DF grinding and polishing stones Grit size Type Order No. 60 pieces s 13 x 6 x x 13 x x 1 x x 5 x x 10 x 10 x Ø 6 x Ø 10 x Ø 13 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 185

107 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein MF grinding and polishing stones Gesswein MF grinding and polishing stones Grit size Type Order No. 60 pieces s These stones produce a semi-gloss surface. As abrasive for these stones, silicon carbide or Premium silicon carbide (type...p) is used. The soft bonding results in fast cutting action and largely prevents clogging. Since these MF stones easily adapt to the required prostone, they are ideal for outlines and radii. 4 x 4 x P P P P P P Ultrasonic P x 3 x Bonding Soft Hard Stock removal Slow Fast 6 x 3 x P P Wear Slow Fast P P Application Preparatory work Finishing 6 x 6 x x 6 x P P P P x 3 x P P P P Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

108 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein MF grinding and polishing stones Gesswein MF grinding and polishing stones Grit size Type Order No. 60 pieces s 13 x 6 x x 6 x P P P P x 13 x x 13 x P P P P P P P x 5 x P P Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 187

109 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein Super-Soft grinding and polishing stones Gesswein Super-soft grinding and polishing stones Grit size Type Order No. 60 pieces s The abrasive used for the Super-Soft version is white aluminium oxide. The very soft bond allows for a quick adapation of these stones and prevents clogging. Perfectly suited for processing aluminium, beryllium, brass, bronze and stainless steel. These stones can be quickly and easily trued. 6 x 6 x x 3 x Ultrasonic Bonding Soft Hard 13 x 6 x Stock removal Slow Fast 5 x 13 x Wear Slow Fast 5 x 5 x Application Preparatory work Finishing 188 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

110 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Gesswein WP SF grinding and polishing stones Gesswein WP grinding and polishing stones Grit size Type Order No. 60 pieces s Bonding Ultrasonic x 3 x WP x 6 x WP x 3 x WP Soft Hard 13 x 6 x WP Stock removal x 13 x WP Slow Wear Fast We recoend the use of white grinding and polishing stones made of aluminium oxide in grit size 800 after use of the MF quality Slow Fast Application Preparatory work Finishing Gesswein SF grinding and polishing stones Grit size Type Order No. 60 pieces s Ultrasonic 4 x 4 x SF x 3 x SF Bonding x 6 x SF Soft Hard 13 x 3 x SF Stock removal Slow Fast Wear Slow Fast 13 x 6 x SF These stones are recoended for an extra-fine surface finish on the workpiece. They are made of levigated alumina in grit size finer than 100. These stones do not scratch and are eminently suitable for polishing with a diamond compound. Application Preparatory work Finishing Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 189

111 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AM-8 grinding and polishing stones i Only available in packs of 1! Boride AM-8 grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces The AM-8 grinding and polishing stones made of white aluminium oxide have been developed for the elimination of the hard erosion layer. The stone is dimensionally stable with good stock removal characteristics. The use of a fluid is recoended. A fluid is recoended for use. They can be used manually, with a hand-filing machine or with ultrasonic polishing equipment. 6 x 3 x AM AM AM AM AM AM AM Ultrasonic 400 AM AM Bonding Soft Hard 10 x 10 x AM AM AM AM Stock removal 0 AM AM Slow Fast 13 x 1.6 x AM Wear Slow Fast 10 AM AM AM AM Application Preparatory work Finishing 80 AM AM AM AM x 3 x AM AM AM AM AM AM AM AM AM Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

112 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AM-8 grinding and polishing stones i Only available in packs of 1! Boride AM-8 grinding and polishing stones Grit size Type Order No. 60 pieces 13 x 6 x AM AM AM AM AM AM AM AM AM pieces 6 x 6 x 6 x AM AM AM AM AM x 10 x 10 x AM AM AM AM AM Ø 6 x AM AM AM AM AM AM Test set Order No. Test set Boride AM abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 191

113 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride CS-HD grinding and polishing stones i Only available in packs of 1! NEW! Boride CS-HD grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces Extremely hard stones made of silicon carbide for the pretreatment in hard moulds (> 47 HRC). Can be used manually or in a hand-filing machine, dry or with a fluid. Ultrasonic 6 x 3 x CS-HD CS-HD CS-HD CS-HD CS-HD CS-HD Bonding Soft Hard 13 x 3 x CS-HD CS-HD CS-HD Stock removal Slow Fast 30 CS-HD CS-HD CS-HD x 6 x CS-HD Wear Slow Fast 150 CS-HD CS-HD CS-HD CS-HD Application 600 CS-HD Preparatory work Finishing 13 x 13 x CS-HD CS-HD CS-HD CS-HD CS-HD Test set Order No. Preis Test set Boride CS-HD abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

114 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AB grinding and polishing stones i Only available in packs of 1! Boride AB grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces These stones in aluminium oxide are manufactured with a hard synthetic resin bonding. Consequently, the AB grinding stones are especially suited to detailed work on slots, ribs and engravings. The resistant bond allows sharp edge work, particularly on steels of more than 54 HRC. Can be used manually, with a hand-filing machine or ultrasonic polishing equipment; dry use only. 6 x 3 x AB AB AB AB AB AB AB Ultrasonic 13 x 3 x AB AB Bonding Soft Hard 0 AB AB AB AB Stock removal 600 AB Slow Fast 13 x 6 x AB AB Wear Slow Fast 80 AB AB AB AB Application Ø 6 x AB AB Preparatory work Finishing Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 193

115 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride T grinding and polishing stones i Only available in packs of 1! Boride T grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces These stones are perfect for high-alloyed tools and high-grade steels. Thanks to their own impregnation, these stones work very efficiently and produce a semi matt surface on the workpiece. Can be used manually or in a hand-filing machine, with a fluid. 6 x 3 x T T T T T Ultrasonic 6 x 6 x T T Bonding Soft Hard 30 T T T Stock removal Slow Fast 13 x 3 x T T T T Wear 600 T Slow Fast 13 x 6 x T T Application Preparatory work Finishing 30 T T T x 6 x T T T T Test set Order No. Preis Test set Boride T abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

116 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride TH grinding and polishing stones i Only available in packs of 1! Boride TH grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces TH grinding and polishing stones in aluminium oxide are provided with a special impregnation. This prevents clogging and allows a very fine grinding pattern. These stones retain their shape well, have good stock removal properties and are therefore excellent for removing erosion structures. Can be used manually or in a hand-filing machine, always with a fluid. Ultrasonic 6 x 3 x TH TH TH TH TH x 6 x TH TH TH Bonding TH TH Soft Hard 13 x 3 x TH Stock removal Slow Fast 0 TH TH TH TH Wear Slow Fast 13 x 6 x TH TH TH TH Application 600 TH Preparatory work Finishing Test set Order No. Preis Test set Boride TH abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 195

117 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride Orange EDM grinding and polishing stones i Only available in packs of 1! Boride Orange EDM grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces The EDM orange grinding and polishing stones in aluminium oxide have been developed for the removal of erosion layers. The bonding allows rapid adaptation to the contour with good dimensional stability. Good stock removal. Can be used manually or in a hand-filing machine, either dry or with a fluid. 3 x 3 x Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Ultrasonic 6 x 3 x Orange EDM Bonding Soft Hard 180 Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Stock removal Slow Fast 6 x 6 x Orange EDM Orange EDM Orange EDM Wear 30 Orange EDM Orange EDM Slow Fast 600 Orange EDM Application Preparatory work Finishing 10 x 10 x Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM x 3 x Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM x 6 x Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

118 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride Orange EDM grinding and polishing stones i Only available in packs of 1! Boride Orange EDM grinding and polishing stones Grit size Type Order No. 60 pieces 5 x 6 x Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM pieces 6 x 6 x 6 x Orange EDM Orange EDM Orange EDM Orange EDM x 10 x 10 x Orange EDM Orange EDM Orange EDM Orange EDM Ø 6 x Orange EDM Orange EDM Orange EDM Orange EDM Orange EDM Test set Order No. Preis Test set Boride orange EDM abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 197

119 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AO grinding and polishing stones i Only available in packs of 1! Boride AO grinding and polishing stones Grit size Type Order No. 60 pieces s Very aggressive allround stones in aluminium oxide for all steels in tool and mould building. These grinding stones have a semi-hard bonding and are oil impregneted, so that they do not clog easily. AO stones are dimensionally stable and offer a good cutting performance. High stock removal rates with milling and erosion structures. Can be used manually or in a hand-filing machine, always with a fluid. Ultrasonic 6 x 3 x AO AO AO AO AO AO x 3 x AO AO Bonding Soft Hard 0 AO AO AO AO Stock removal Slow Fast 13 x 6 x AO AO AO Wear Slow Fast 30 AO AO AO x 13 x AO Application 150 AO Preparatory work Finishing 0 AO AO AO AO x 6 x 6 x AO AO x 10 x 10 x AO AO AO x 13 x 13 x AO Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

120 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AO grinding and polishing stones i Only available in packs of 1! Boride AO grinding and polishing stones Grit size Type Order No. 60 pieces Ø 10 x AO AO AO AO AO s Ø 13 x AO AO AO AO Test set Order No. Preis Test set Boride AO abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Boride RB grinding and polishing stones i Only available in packs of 1! Boride RB grinding and polishing stones RB stones cut extremely rapidly and do not clog during processing. They can also be used for dry working. Ideal for all hard tool steels. Grit size Type Order No. 60 pieces 5 x 6 x RB RB pieces Ultrasonic Bonding Soft Hard Stock removal Slow Fast Wear Slow Fast Application Preparatory work Finishing Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 199

121 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AM- grinding and polishing stones i Only available in packs of 1! Boride AM- grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces These universal AM- grinding and polishing stones in aluminium oxide are used for all types of steel in mould and tool building. Owing to the uniform stock removal with a fine grinding pattern, the AM- abrasive stone is also very suitable for all non-ferrous metals, aluminium, copper and high-chrome and high-nickel steels. The semi-hard stones are used with fluid up to the very fine finishing stage with K 900. Tip: When processsing aluminum, work should be performed from 30 onwards with an abrasive cloth. Ultrasonic 6 x 3 x AM AM AM AM AM AM AM AM AM x 6 x AM AM Bonding Soft Hard 180 AM AM AM AM AM Stock removal 600 AM AM Slow Fast 10 x 10 x AM AM Wear Slow Fast 0 AM AM AM AM Application Preparatory work Finishing 600 AM x 3 x AM AM AM AM AM AM AM AM AM x 6 x AM AM AM AM AM AM AM AM AM Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

122 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AM- grinding and polishing stones i Only available in packs of 1! Boride AM- grinding and polishing stones Test set Order No. Test set Boride AM abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Preis Grit size Type Order No. 60 pieces 13 x 13 x AM AM AM AM AM AM AM AM AM x 13 x AM AM AM AM AM AM AM AM AM x 5 x AM AM AM AM AM AM AM x 10 x 10 x AM AM AM AM Ø 6 x AM AM AM AM AM Ø 10 x AM AM AM AM AM Ø 13 x AM AM AM AM pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 01

123 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride AS-9 grinding and polishing stones i Only available in packs of 1! Boride AS-9 grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces With their semi-hard bonding, the AS-9 abrasive stones in aluminium oxide rapidly adapt to the contour of the workpiece. This product was developed for hard-treated steel surfaces is desiged for manual and machine processing. Always use with fluid. 6 x 3 x AS AS AS AS AS AS Ultrasonic 30 AS AS Bonding 600 AS Soft Hard 13 x 3 x AS AS AS Stock removal 180 AS Slow Fast 0 AS AS AS Wear AS AS Slow Fast 13 x 6 x AS Application Preparatory work Finishing 10 AS AS AS AS AS AS AS AS Test set Order No. Preis Test set Boride AS abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

124 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride T4 grinding and polishing stones i Only available in packs of 1! Boride T4 grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces The stones for an excellent finish. The T4 grinding and polishing stones, manufactured from aluminium oxide, achieve a high stock removal performance with an excellent finish through their special impregnation and medium-soft bonding. No scratch formation and tearing of the surface occurs. Especiall suitable for use with aluminium and other nonferrous heavy metals. Can be used manually or in a hand-filing machine, in combination with a fluid. 6 x 3 x T T T T T x 6 x T Ultrasonic 0 T T Bonding T T Soft Hard 13 x 3 x T Stock removal Slow Fast 0 T T T T Wear 13 x 6 x T T Slow Fast 30 T T Application 600 T Preparatory work Finishing 5 x 6 x T T T T T Test set Order No. Preis Test set Boride T abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 03

125 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride Gold grinding and polishing stones i Only available in packs of 1! NEW! Boride Gold grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces These new aluminium oxide stones are impregnated with a special fluid. They are good allrounders and ideal for the last processing step before polishing. Thanks to their impregnation, they can also be used in dry applications. Even better results can be achieved in combination with a fluid. 6 x 3 x Gold Gold Gold Gold Gold Gold Ultrasonic 400 Gold Gold Bonding Soft Hard 550 Gold Gold Gold x 3 x Gold Stock removal 150 Gold Gold Slow Fast 0 Gold Gold Wear Slow Fast 30 Gold Gold Gold Gold Application Gold Gold Preparatory work Finishing 13 x 6 x Gold Gold Gold Gold Gold Gold Gold Gold Gold Gold Gold Test set Order No. Preis Test set Boride Gold abrasive test stones (13 x 3 x 150 ) grit sizes Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

126 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride DIE STONE grinding and polishing stones i Only available in packs of 1! Boride DIE STONE grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces The universal stones for processing all tool steels. The DIE STONES in aluminium oxide offer an even, rapid stock removal and can be used dry or with a fluid. These stones can be used manually or with hand-filing machines. 6 x 3 x DIE Stone DIE Stone DIE Stone DIE Stone DIE Stone DIE Stone Ultrasonic 10 x 10 x DIE Stone DIE Stone Bonding Soft Hard 30 DIE Stone DIE Stone DIE Stone Stock removal Slow Fast 13 x 3 x DIE Stone DIE Stone DIE Stone DIE Stone Wear DIE Stone DIE Stone Slow Fast 13 x 6 x DIE Stone Application Preparatory work Finishing 180 DIE Stone DIE Stone DIE Stone DIE Stone DIE Stone x 6 x DIE Stone DIE Stone DIE Stone DIE Stone DIE Stone DIE Stone x 6 x 6 x DIE Stone DIE Stone Test set Order No. Preis Test set Boride DIE STONE 5 abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, DIE Stone DIE Stone Ø 6 x DIE Stone DIE Stone DIE Stone DIE Stone DIE Stone Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 05

127 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride CS-M grinding and polishing stones i Only available in packs of 1! NEW! Boride CS-M Grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces The medium-soft bond of these premium silicon carbide stones allows high stock removal rates without clogging. CS-M stones are generally used with a fluid, either manually or with a hand-filing machine. 6 x 3 x CS-M CS-M CS-M CS-M CS-M Ultrasonic 600 CS-M Bonding Soft Hard 13 x 3 x CS-M CS-M CS-M CS-M Stock removal CS-M CS-M Slow Fast 13 x 6 x CS-M CS-M Wear 0 CS-M CS-M Slow Fast 400 CS-M CS-M Application Preparatory work Finishing 13 x 13 x CS-M CS-M CS-M CS-M CS-M Ø 6 x CS-M CS-M CS-M CS-M Test set Order No. Preis Test set Boride CS-M abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

128 . Grinding and polishing tools Ñ.7. Grinding and polishing stones NEW! Boride PC grinding and polishing stones i Only available in packs of 1! Boride PC grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces These stones are very soft and therefore quickwearing. They achieve excellent surfaces, which can be polished quickly. However, PC stones are not suitable for removing erosion skins. Suitable for use on tool steels, aluminium, non-ferrous metals and on stainless steels, always with a fluid. 4 x 4 x PC PC PC PC PC x 3 x PC PC PC PC PC x 6 x PC PC PC PC PC Ultrasonic 13 x 3 x PC Bonding Soft Hard 0 PC PC PC PC Stock removal Slow Fast 13 x 6 x PC PC PC PC Wear 600 PC Slow Fast 5 x 6 x PC PC Application Preparatory work Finishing 30 PC PC PC Test set Order No. Preis Test set Boride PC abrasive test stones (13 x 3 x 150 ) grit sizes 180, 0, 30, 400, 600 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 07

129 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride CS grinding and polishing stones i Only available in packs of 1! Boride CS grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces CS stones are manufactured from silicon carbide with a very soft bonding. They adapt very easily to contours and are primarily manually without a fluid. Very suitable for use with non-ferrous metals. Ultrasonic 6 x 3 x CS CS CS CS CS x 6 x CS Bonding Soft Hard 0 CS CS CS CS Stock removal Slow Fast 13 x 3 x CS CS CS Wear Slow Fast 30 CS CS CS x 6 x CS Application 180 CS CS Preparatory work Finishing 30 CS CS CS Boride fluid 10, 3.8 Liter Order No. Preis Experience improved cutting performance and cleaning with original Boride abrasive stone fluids. Our recoendation for all our grinding and polishing stones Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

130 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Boride RO-MED grinding and polishing stones i Only available in packs of 1! Boride RO-MED grinding and polishing stones Grit size Type Order No. 60 pieces 1 pieces These grinding and polishing stones have been especially developed for use in large moulds and are therefore only available in high grit sizes. They offer particularly fast and aggressive stock removal. Thanks to their medium-hard bond, they adapt quickly to the geometry. 5 x 13 x RO-MED RO-MED RO-MED RO-MED Ultrasonic 50 x 5 x RO-MED RO-MED RO-MED Bonding 0 RO-MED Soft Hard Stock removal Slow Fast Wear Slow Fast Application Preparatory work Finishing NEW! Bench stones Ñ Bench stones These stones can be used on both sides and are available in aluminium oxide or silicon carbide. Combination of K 10 and 30. Bench stones Grit size Order No. Preis Aluminium oxide 5 x 50 x 50 # 10/ Silicon carbide 5 x 50 x 150 # 10/ Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 09

131 . Grinding and polishing tools Ñ.7. Grinding and polishing stones JOKE FD-K JOKE FD grinding and polishing stones JOKE FD-K / FD grinding and polishing stones Type These ceramic-oxide stones are made from extremely hard mixed crystals. The main component of these crystals is aluminium oxide with an addition of chromium oxide, which gives them their typical red colour. These crystals naturally occur as rubies. The FD-K and FD stones without bonding are extremely resistant to wear and change in shape. They are ideal for use with ENESKA -1 ultrasonic polishing systems (see page 10). These stones are supplied in two qualities: quality F (fine) has a very fine surface due to diamond bonding; M (medium) provides better stock removal. Tip: Well suited to tungsten carbide processing and for very fine finishing after grinding. Grit size Order No. FD-K 50 x 3 x 0.3 fine x 4 fine x 1 fine x fine x 3 fine x fine x 3 fine x 1 fine x fine Bonding Soft Stock removal Slow Wear Slow Ultrasonic Hard Fast Fast 100 x 4 x 1.5 fine x 5 x 1.5 fine FD 100 x 6 x 3 fine x 6 x 3 medium x 8 x 6 fine x 8 x 6 medium x 4 fine x 4 medium x 6 fine x 6 medium x 8 fine x 8 medium Application 1 medium 3 4 Fine 5 Preparatory work Finishing 100 x 4 fine x 4 medium x 6 fine x 6 medium x 8 fine x 8 medium x 4 fine x 4 medium x 6 fine x 6 medium x 8 fine x 8 medium Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

132 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Image: Manfred Esser Sales Team Ñ The Backstage Squad - nothing goes without them. Receivers at the ear, fingers on the keyboard and always full steam ahead. Whatever the field staff do on the outside stage, Renate, Doris, Franz-Josef I and Franz II always ensure that everything runs smoothly backstage. Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 11

133 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Grinding and polishing stone holders Grinding and polishing stone holders Order No. Preis Tool holder A with quick gripping for grinding stones 4 x 4 Tool holder B for grinding stones 4 x 4. 6 x 6 or 6 x 3 Tool holder FMR/VH for grinding and polishing stones up to 8 wide Stone/grinding and polishing stone holder, PU shank Ø 4.8, for 6 stones, tool reception max. 100 Stone/grinding and polishing stone holder, PU shank Ø 4.8, for 3 stones, tool reception max. 80 Holder for lapping sticks shank Ø 3 x 35, head can be swivelled by 90, tool reception up to 10 x 10 Holder for lapping sticks shank Ø 3.5 x 30, tool reception up to 8 height Plastic holder for lapping sticks shank Ø 3., clamping range: up to 15 Plastic holder for lapping sticks shank Ø 4.8, clamping range: up to 15 Holder for lapping sticks suitable for all linear hand and mini hand-filing machines Grinding and polishing stone holder shank Ø 4 x 50, clamping range: up to 11 height 1 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

134 . Grinding and polishing tools Ñ.7. Grinding and polishing stones Grinding and polishing stone holder Grinding and polishing stone holders Order No. Preis Premium mini multipurpose holder shank Ø 3, clamping range: Up to 8 height, hardened finish, high-strength clamping plate Multipurpose holder premium, medium shank Ø 3, clamping range: 6 height, hardened finish. Shank and body made from one piece of high-strength clamping plate. Features cut-out for 6 flat and round media. Multipurpose holder premium, medium as Order No , but with shank Ø 6 Multipurpose holder premium, large shank Ø 6, clamping range: 5 width, height variable up to 13 Tool holder single 13 x for stones 6 x 13 Tool holder double for stones 3 x 6, 6 x 6 or 6 x 3 Tool holder, shank Ø for grinding and lapping sticks flat -3 and Ø 3 Tool holder 30 x 9 x (pack content: 10 pieces) without tools Toggle rod for stone holder, shank Ø 3, length Tool holder system Order No. Preis An ergonomically designed handle, which can be used with eight different inserts. The lock nut fixes the insert and therefore clamps the inserted tools. Available as single pieces on demand or in a set with eight completely equipped handles. Tool holder set Tool holder handle Tool holder lock nut Tool holder insert 3 x x x x x x Ø Ø

135 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools Ceramic-fibre tools High-tech spaghetti Ñ Admittedly, you are unlikely to find these on the menu at your favourite Italian restaurant. But then again, should you really be thinking about work when you are out for a meal? Even more so, when you are reading these lines. Because in order to choose the right ceramic-fibre tool, you should know a bit more about these modern products than just the order number and price. General information about ceramic-fibre files Whilst normal grinding files (grinding and polishing blocks) polish with grains, ceramic-fibre files achieve this through fibres. Conventional abrasives can lose their grain during the polishing process, which then scratch the workpiece. Ceramic-fibres cannot chip. The grains on conventional abrasives are usually not distributed evenly, which is always guaranteed with ceramic fibres. The fibres cover ca. 80 % of the file, which results in higher stock removal and a better surface quality. Normal grinding files cannot be thinner than 3 to ensure tool stability. JOKE ceramic-fibre files, on the other hand, are so tough that they are available in file stengths as small as 0.5. This allows the user to process areas, which were so far not accessible with extrusion tools, such as ribs. Due to the high stability of ceramic-fibre files, even very thin files can be used in filing machines. This application is regardless of the type of propulsion (electric, pneumatic, flexible shaft) and is particularly useful for polishing with ultrasonic machines. Special information about JOKE ceramic-fibre files The crystals on conventional files are soft and yield a lower stock removal. JOKE ceramic-fibre files feature μ-mullite crystals, which are considerably harder and more suitable for polishing. Note: The crystal state is only achieved through further production steps (i.e. exposure to high temperatures). μ-mullite crystals are a product of an early stage of the aluminium fibre crystal. In contrast to the usually round shape of conventional files, the profile of individual fibres of on JOKE ceramic-fibre files is oval. This results in a much better stock removal. Each grit of the different ceramic-fibre files is produced with fibres of the same grain size. Conventional production methods use fibres with different diameters in order to stabilise the files. This clearly compromises the polishing performance so that the required surface smoothness can often not be achieved (see illustrations). Round ceramic-fibre files are either made from plates or designed in a meshwork structure. This meshwork structure is unique to JOKE ceramic-fibre files. Thus, the entire file surface can be used for polishing and files and their points are much more durable (see illustration 1). The files dual linear structure, where the points of the linear, intersecting fibres process the workpiece, result in better adherence so that the structure tends to provide better contact with the grinding surface than unidirectional structures. The slanted fibres provide a larger usable surface area than with straight versions. Furthermore, slipping to the side is prevented and a very high cutting force achieved (see illustrations and 3 below). Low heat production minimises workpiece changes as well as a deterioration of the processed article and does not result in a hardening of the file. Ñ You will find: Varied fibre structure achieved with conventional production processes Standard and HT ceramicfibre files pages Diamond ceramic-fibre files page 0 Ceramic-fibre files on shank page 1 Ceramic-fibre abrasive brushes page 1 Regular fibre structure achieved with JOKE ceramic-fibre files Illustr. 1: Meshwork structure Illustr. : Dual linear structure Illustr. 3: Straight simple structure Ceramic-fibre cut-off wheels page 14 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

136 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools Ceramic-fibre abrasive files i Comparison of ceramic-fibre files Comparative tests by Nagoya university Stock removal rate (g) Stock removal rate (g) Surface roughness (Ra) JOKE competition JOKE competition Grit size micron Comparison of the achieved surface roughness with JOKE ceramic-fibre files grit size 400 and a competitor s product grit size Surface roughness with a competitor s product grit size 800. Surface roughness with JOKE ceramic-fibre files grit size Stock removal rate with a competitor s product grit size Stock removal rate with JOKE ceramic-fibre files grit size 400 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 15

137 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools JOKE ceramic-fibre files JOKE ceramic-fibre files Grit size Colour Order No. 10 pieces 5 pieces JOKE standard ceramic-fibre files are very universal tools. Particularly useful for applications, in which conventional tools cannot be used, such as filigree areas such as grooves, bars, ribs etc. These files are very suitable for use as lapping and polishing tools in conjunction with diamond compounds. They can be used manually (for example in special file holders, see p. 0) or with a hand-filing machine. Ceramic-fibre files are perfect for use in combination with ultrasonic polishing systems. For this application, we recoend the special HT files, which offer higher heat resistance and can therefore withstand even very high power outputs without literally burning off. 0.5 x 4 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm dark brown # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 4 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm dark brown # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 6 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm dark brown # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 10 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm dark brown # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 6 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm dark brown # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

138 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools JOKE ceramic-fibre files JOKE ceramic-fibre files Grit size Colour Order No. 10 pieces 5 pieces x 10 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm dark brown # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black i There is even more to it! Please let us know your special requests regarding ceramic-fibre files. We can make almost anything possible. For further information, please contact Jürgen Meyer: Tel. +49 (0) 04 / j.meyer@joke.de # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Ø,35 x 100 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm grau # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 100 / 10 µm red Ø,35 x 150 # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Ø 3 x 100 # 10 / 110 µm green # 180 / 80 µm gold # 0 / 50 µm grau # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Ø 3 x 150 # 0 / 50 µm grau # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm black # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 17

139 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools JOKE HT ceramic-fibre files JOKE HT ceramic-fibre files Grit size Colour Order No. 10 pieces 5 pieces Thanks to their heat resistance, JOKE HT ceramic-fibre files are the perfect partner for the ultrasonic polishing system ENESKA -1 (see page 10) and other systems with 45 W output power. These files remain break-proof even with high stock removal and do not become clogged. 0.5 x 4 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 4 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 6 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 10 x 150 # 10 / 110 µm green # 180 / 80 µm gold i Is that everything? No. We can offer you a range of further dimensions and grit sizes for our ceramic-fibre files JOKE HT. Please contact Jürgen Meyer: Tel. +49 (0) 04 / j.meyer@joke.de # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

140 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools JOKE HT ceramic-fibre files JOKE HT ceramic-fibre files Grit size Colour Order No. 10 pieces 5 pieces x 6 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red x 10 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Ø.35 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Ø 3 x 150 # 10 / 110 µm green # 180 / 80 µm gold # 300 / 40 µm light brown # 400 / 30 µm orange # 600 / 5 µm dark brown # 800 / 0 µm blue # 1000 / 15 µm white # 100 / 10 µm red Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 19

141 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools Diamond ceramic-fibre files Diamond ceramic-fibre files Grit size Colour Order No. 5 pieces Diamond ceramic-fibre files are a further development of the well established ceramic-fibre files. Diamond grains are mixed with the binding medium. Owing to the additional diamond grains between the individual fibres and above all around the circumference, the file can be used over its entire length. The working result is a fine, even stroke pattern with good stock removal. 1 x 4 x 100 # 00 / 70 µm black # 400 / 30 µm grey # 600 / 5 µm moss green x 6 x 100 # 00 / 70 µm black # 400 / 30 µm grey # 600 / 5 µm moss green Tip: Very well suited for use with ultrasonic polishing systems. 1 x 10 x 100 # 00 / 70 µm black # 400 / 30 µm grey # 600 / 5 µm moss green Ø 3 x 100 # 00 / 70 µm black # 400 / 30 µm grey # 600 / 5 µm moss green Holders for ceramic-fibre files Holders for ceramic-fibre files Order No. Price Practical plastic holders facilitating the manual use of ceramic files. Available in various different widths and as metal holder for round files. Holder for wide files Holder for 4 wide files Holder for 6 wide files Holder for 10 wide files Holder for round ceramic-fibre files Set (for 4, 6 and 10 width) Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

142 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools Ceramic-fibre files on a shaft shank Ø 3 x 30 Ceramic-fibre files on a shank, shank Ø 3 x 30 Head dimensions Grit size Colour Shank dimensions Order No. 10 pieces 5 pieces These ceramic-fibre files offer a tight grip thanks to the shank. They are economic and efficient to use, as there are no more left-overs. These tools can be used for a wide range of applications: They are ideal for use in ultrasonic polishing systems and short-stroke handfiling machines. Good results are also achieved when used in rotating handpieces with up to 50,000 rpm. Ø 1 x 9 # 180 / 80 µm gold Ø 3 x # 300 / 40 µm light brown Ø 3 x # 400 / 30 µm orange Ø 3 x # 600 / 5 µm dark brown Ø 3 x # 800 / 0 µm blue Ø 3 x # 1000 / 15 µm white Ø 3 x # 100 / 10 µm red Ø 3 x P nmax 50,000 rpm Ø 1,5 x 9 # 180 / 80 µm gold Ø 3 x # 300 / 40 µm light brown Ø 3 x # 400 / 30 µm orange Ø 3 x # 600 / 5 µm dark brown Ø 3 x # 800 / 0 µm blue Ø 3 x # 1000 / 15 µm white Ø 3 x # 100 / 10 µm red Ø 3 x Ø x 9 # 180 / 80 µm gold Ø 3 x # 300 / 40 µm light brown Ø 3 x # 400 / 30 µm orange Ø 3 x # 600 / 5 µm dark brown Ø 3 x # 800 / 0 µm blue Ø 3 x # 1000 / 15 µm white Ø 3 x # 100 / 10 µm red Ø 3 x Ceramic-fibre abrasive brushes shank Ø 3 x 30 Ceramic-fibre abrasive brushes, shank Ø 3 x 30 Head dimensions Grit size Colour Shank dimensions Order No. 10 pieces 5 pieces In this tool, individual ceramic-fibres are grouped together to form a brush. This allows effective work with a good surface. Excellent properties in eliminating erosion structures and for deburring aluminium, brass etc. Ø 5 x 0 # 1000 / 15 µm white Ø 3 x Ø 5 x 0 # 100 / 10 µm red Ø 3 x Tip: The additional use of diamond compound considerably improves the working result. P nmax 1,000 rpm Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 1

143 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools JOKE ceramic-fibre cut-off discs Ceramic-fibre cut-off discs Mounting hole size Grit size Colour Order No. 10 pieces 5 pieces JOKE ceramic-fibre cut-off discs are extremely strong and achieve a high cutting performance. These discs are for dry application and can also be used with diamond compound and fluid. Ø 19 x 0.4 Ø 1.8 # 300 / 40 µm light brown Ø 1.8 # 400 / 30 µm orange Ø 1.8 # 600 / 5 µm dark brown Ø 1.8 # 800 / 0 µm blue Ø x 0.4 Ø 1.8 # 300 / 40 µm light brown Ø 1.8 # 400 / 30 µm orange Ø 1.8 # 600 / 5 µm dark brown Ø 1.8 # 800 / 0 µm blue Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

144 . Grinding and polishing tools Ñ.8. Ceramic-fibre tools Image: Manfred Esser Brigitte Wulff Ñ The Voice. She is the voice of JOKE. A true North German in the Rhineland and a politics graduate a master of words and aesthetics. With her passion for literature, she is our source of knowledge and wisdom. We will let you into a secret: Our Frau Wulff likes singing and reciting poems, whenever she is not talking to you... Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 3

145 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive sleeves, caps and rubber holders Ñ JOKEFLEX abrasive sleeves and caps Thank to their seamless and transition-free shape, JOKEFLEX abrasive sleeves and caps achieve top results. They are used on elastic, suitably shaped rubber holders. A speciality: Thanks to the slotted shape of the rubber holder, the abrasive sleeves and caps are held securely by the rotational forces during processing. When they are used up, simply replace the sleeves/caps re-using the same holder. JOKEFLEX abrasive sleeves and caps run particularly true, are easy to guide and achieve a very soft grinding pattern. They are very well suited for fine finishing of metals, particularly steels. Cutting speed Vmax: 40 m/s Abrasive sleeves Suitable rubber holder Grit size Packing unit Order No. 10 packs Corundum Ø 10 x pieces pieces pieces pack Ø 10 x pieces pieces pieces Ø 13 x pieces pieces pieces Ø 13 x pieces pieces pieces Ø 15 x pieces pieces pieces pieces Ø 15 x pieces pieces pieces pieces Ø x pieces pieces pieces pieces Ø 5 x pieces pieces pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

146 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive sleeves, caps and rubber holders Abrasive sleeves Suitable rubber holder Grit size Packing unit Order No. 10 packs Ø 30 x pieces pieces pieces pieces Ø 30 x pieces pieces pieces pieces pieces pack Ø 45 x pieces pieces pieces pieces pieces Ø 60 x pieces pieces pieces pieces Ø 9/ x pieces pieces pieces pieces Corundum, shank Ø 6 x 40 Head Shank Order No. Cylinder Ø 10 x 10 Ø 6 x Ø 10 x 0 Ø 6 x Ø 13 x 10 Ø 6 x Ø 13 x 5 Ø 6 x Ø 15 x 10 Ø 6 x Ø 15 x 30 Ø 6 x Ø x 0 Ø 6 x Ø 5 x 5 Ø 6 x Ø 30 x 0 Ø 6 x Ø 30 x 30 Ø 6 x Ø 45 x 30 Ø 6 x Ø 60 x 30 Ø 6 x packs 1 packs Conical Ø 9/ x 30 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 5

147 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive sleeves, caps and rubber holders Rubber holder, cylinder Suitable rubber holder Grit size Packing unit Order No. 5 packs Corundum Ø 7 x pieces pieces pieces Ø 9 x pieces pieces pieces pack Ø 1 x pieces pieces pieces Ø 15 x pieces pieces pieces Ø 18 x , pieces pieces pieces Corundum green Ø 7 x pieces pieces Ø 9 x pieces pieces pieces Ø 1 x pieces i Corundum and corundum green what is the difference? The green polishing caps are particularly suitable for corrosion- and heat-resistant steels. They offer very cool grinding, a long service life and very high stock removal. Our normal abrasive caps and sleeves achieve best results on all standard steels. In direct comparison, they offer a noticeably shorter service life. Rubber holder, cylinder Shank dimensions pieces pieces Head dimensions Order No. Ø 3 x 5 Ø 5 x Ø 7 x Ø 10 x Ø 13 x Ø 16 x Ø 6 x 40 Ø 16 x packs 5 packs 1 packs 6 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

148 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive caps and rubber holders Abrasive caps, rounded barrel suitable rubber holder Grit size Packing unit Order No. 5 packs Corundum Ø 7 x pieces pieces pieces Ø 9 x pieces pieces pieces pack Ø 1 x pieces pieces pieces Ø 15 x pieces pieces pieces Ø 18 x pieces pieces pieces Corundum green Ø 7 x pieces pieces Ø 9 x pieces pieces pieces Ø 1 x pieces pieces pieces Ø 15 x pieces pieces pieces Rubber holder, rounded barrel Shank dimensions Head dimensions Order No. 10 pieces 5 pieces Ø 3 x 5 Ø 5 x Ø 7 x Ø 10 x Ø 13 x Ø 16 x Ø 6 x 40 Ø 16 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 7

149 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive caps and rubber holders Abrasive caps, barrel cone Suitable rubber holder Grit size Packing unit Order No. 5 packs Corundum Ø 7 x pieces pieces pieces Ø 9 x pieces pieces pieces pack Ø 1 x pieces pieces pieces Ø 15 x pieces pieces pieces Ø 18 x , pieces pieces pieces Corundum green Ø 7 x pieces pieces Ø 9 x pieces pieces pieces Ø 1 x pieces pieces pieces Ø 15 x pieces pieces pieces Rubber holder, barrel cone Shank dimensions Head dimensions Order No. 10 pieces 5 pieces Ø 3 x 5 Ø 5 x Ø 7 x Ø 10 x Ø 13 x Ø 16 x Ø 6 x 40 Ø 16 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

150 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive caps and rubber holders Abrasive caps, rounded cone Suitable rubber holder Grit size Packing unit Order No. 5 packs Corundum Ø 7/6 x pieces pieces Ø 1/11 x pieces pieces pack Ø 18/16 x pieces pieces Ø 3/1 x pieces pieces Abrasive caps, rounded cone Suitable rubber holder Grit size Packing unit Order No. 5 packs Corundum Ø 6/10 x pieces pieces pack Ø 11/15 x pieces pieces Ø 0/16 x pieces pieces Ø 3/1 x pieces pieces Rubber holder, rounded cone, shank Ø 6 x 40 Head dimensions Shank dimensions Order No. 10 pieces 5 pieces Ø 5 / 4 x 15 Ø 6 x Ø 8 / 4 x 85 Ø 6 x Ø 11 / 9 x 5 Ø 6 x Ø 13 / 11 x 85 Ø 6 x Ø 16 / 14 x 3 Ø 6 x Ø 18 / 14 x 85 Ø 6 x Ø 1 / 19 x 40 Ø 6 x Ø 1 / 19 x 85 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 9

151 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX abrasive caps and finger range Ñ Product range Our range offers you everything to just get up and go. It contains a total of 540 abrasive caps and fingers in every dimension and grit sizes 80 and 150 plus 18 matching rubber holders. Why not order right now and cover the entire bandwidth of JOKEFLEX abrasive caps and fingers. Abrasive caps/fingers/rubber holder Order No. Price This range contains 540 abrasive caps and fingers and 18 rubber holders in every dimension in grit sizes 80 and Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

152 . Grinding and polishing tools Ñ.9. Emery and fleece tools Flap wheels Ñ Flap wheels Large range of flap wheels with 3 and 6 shanks and a range of special models such as radially slotted flap wheels or wheels with a combination of abrasive cloth and fleece for a particularly even grinding pattern. A new addition to our range are fleece only flap wheels: A truly magnificent solution for fine working. Also new are the cleaning grinding wheels for removing rust, weld splatters and other contamination on the workpiece: Ñ You will find: Flap wheels shank Ø 3 page 3 Flap wheels shank Ø 6 page 34 Flap wheels with fleece lamellas pages Flap wheels, radially slotted page 38 Grinding wheels for cleaning page 39 i Max, rotational speed in relation to cutting speed Vmax and Ø of the tool used Ø in 15 m/s 0 m/s 5 m/s 30 m/s 35 m/s 40 m/s 45 m/s 50 m/s 55 m/s 60 m/s 10 8,500 38,00 47,700 57,300 66,800 76,400 86,000 95, , , ,100 5,400 31,800 38,00 44,600 51,000 57,300 63,700 70,000 76, ,300 19,100 3,900 8,700 33,400 38,00 43,000 47,800 5,600 57, ,400 15,00 19,100,900 6,700 30,500 34,400 38,00 4,000 45, ,500 1,700 15,900 19,000,300 5,400 8,500 31,800 34,800 38, ,100 9,600 11,900 14,300 16,700 19,100 1,500 3,800 6,00 8, ,700 7,600 9,500 11,400 13,400 15,300 17,000 19,000 0,900, ,700 6,300 7,900 9,500 11,100 1,700 14,300 15,900 17,500 19, ,800 5,100 6,400 7,700 9,000 10,100 11,600 1,800 14,100 15, ,500 4,700 5,900 7,100 8,360 8,360 10,700 11,900 13,100 14, ,800 3,800 4,800 5,700 6,700 7,650 8,600 9,600 10,500 11,400 15,300 3,000 3,800 4,600 5,300 6,150 6,900 7,600 8,500 9, ,900,500 3,00 3,800 4,500 5,100 5,700 6,400 7,000 7, ,600,00,700 3,300 3,800 4,350 4,950 5,400 6,050 6, ,400 1,900,400,900 3,400 3,850 4,350 4,800 5,300 5, ,100 1,500 1,900,300,700 3,100 3,450 3,800 4,00 4, ,000 1,300 1,600 1,900,00,550,850 3,00 3,500 3,800 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 31

153 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX flap wheels shank Ø 3 Flap wheels, corundum, shank Ø 3 Head dimensions Grit size Shank dimensions Order No. 100 pieces 50 pieces 10 pieces For elastic grinding. The slit lamellas of JOKEFLEX flap wheels allows them to adapt better to the contour of the workpiece being processed. They cover a wide range of applications: From the metal-working and finishing to the rubber and plastics industry. Ø 10 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 10 x Ø 3 x P Vmax 40 m/s 150 Ø 3 x Ø 3 x Ø 3 x Ø 15 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 15 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 0 x 5 80 Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 0 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 0 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 0 x 0 80 Ø 3 x Ø 3 x Ø 3 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

154 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX flap wheels shank Ø 3 Flap wheels, corundum, shank Ø 3 Head dimensions Grit size Shank dimensions Order No. Ø 5 x 5 80 Ø 3 x pieces 50 pieces 10 pieces 150 Ø 3 x Ø 3 x Ø 3 x Ø 5 x Ø 3 x Ø 3 x Ø 3 x P Vmax 40 m/s 30 Ø 3 x Ø 30 x 5 60 Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 30 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 40 x 5 60 Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 40 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x i Even more choice Apart from the large choice of flap wheels shown here, we also offer further dimensions on demand. Please contact Jürgen Meyer: Tel. +49 (0) 04 / j.meyer@joke.de Ø 40 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Ø 3 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 33

155 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX flap wheels shank Ø 6 Flap wheels, corundum, shank Ø 6 Head dimensions Grit size Shank dimensions Order No. 100 pieces 50 pieces 10 pieces For elastic grinding. The slit lamellas of JOKEFLEX flap wheels allows them to adapt better to the contour of the workpiece being processed. They cover a wide range of applications: From the metal-working and finishing to the rubber and plastics industry. Ø 40 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x P Vmax 40 m/s Ø 40 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 50 x 5 60 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 50 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 50 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 50 x 0 60 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 60 x 5 60 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 60 x Ø 6 x Ø 6 x Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

156 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKEFLEX flap wheels shank Ø 6 Flap wheels, corundum, shank Ø 6 P Vmax 40 m/s Head dimensions Grit size Shank dimensions Order No. Ø 60 x 0 60 Ø 6 x Ø 6 x pieces 50 pieces 10 pieces 10 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 60 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 60 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 80 x 5 60 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 80 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x i Even more choice Apart from the large choice of flap wheels shown here, we also offer further dimensions on demand. Please contact Jürgen Meyer: Tel. +49 (0) 04 / j.meyer@joke.de Ø 80 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 35

157 . Grinding and polishing tools Ñ.9. Emery and fleece tools Flap wheels with fleece lamellas shank Ø 3 NEW! Flap wheels with fleece lamellas, corundum, shank Ø 3 Head dimensions Grit size Shank dimensions Order No. 100 pieces 50 pieces 10 pieces These fan-shaped grinders have radially arranged abrasive fleece lamellas and are ideal for very fine work in awkward areas. They achieve highest surface qualities. Ø 0 x 0 coarse Ø 3 x medium Ø 3 x fine Ø 3 x very fine Ø 3 x P Vmax 10 m/s Ø 30 x 10 coarse Ø 3 x medium Ø 3 x fine Ø 3 x very fine Ø 3 x Ø 30 x 0 coarse Ø 3 x medium Ø 3 x fine Ø 3 x very fine Ø 3 x Ø 30 x 30 coarse Ø 3 x medium Ø 3 x i Grit size fleece comparable to FEPA fine Ø 3 x very fine Ø 3 x coarse medium fine very fine K K K 0-40 K i Even more choice on demand! These flap wheels are available in many more sizes. Please contact Jürgen Meyer: Tel. +49 (0) 04 / j.meyer@joke.de 36 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

158 . Grinding and polishing tools Ñ.9. Emery and fleece tools NEW! Flap wheels with fleece lamellas shank Ø 6 Flap wheels with fleece lamellas, corundum, shank Ø 6 Head dimensions Grit size Shank dimensions Order No. 100 pieces 50 pieces 10 pieces These fan-shaped grinders have radially arranged abrasive fleece lamellas and are ideal for very fine work in awkward areas. They achieve highest surface qualities. Ø 40 x 0 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x Ø 40 x 40 coarse Ø 6 x P Vmax 10 m/s medium Ø 6 x fine Ø 6 x very fine Ø 6 x Ø 50 x 0 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x Ø 50 x 40 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x i Grit size fleece coarse medium fine very fine comparable to FEPA K K K 0-40 K Ø 60 x 0 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x Ø 60 x 40 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x Ø 80 x 0 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x Ø 80 x 40 coarse Ø 6 x medium Ø 6 x fine Ø 6 x very fine Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 37

159 . Grinding and polishing tools Ñ.9. Emery and fleece tools Flap wheels, radially slotted shank Ø 6 Flap wheels, Corundum, radially slotted, shank Ø 6 Head dimensions Grit size Shank dimensions Order No. 10 pieces Thanks to the slotted lamellas, these flap wheels can be used even more flexibly, because they adapt even better to the contour of the workpiece to be processed. P Vmax 15-0 m/s Ø 40 x 0 60 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 50 x 0 60 Ø 6 x Ø 6 x Ø 6 x Ø 6 x Ø 60 x Ø 6 x Ø 6 x Ø 6 x Ø 6 x Flap wheels with fleece lamellas shank Ø 6 Flap wheels with fleece lamellas, corundum, shank Ø 6 Head dimensions Grit size (fleece/cloth) Shank dimensions Order No. 10 pieces Flap wheel of combined abrasive fleece / cloth, non-sulphurous. With the combination of abrasive fleece / cloth, a uniform grinding pattern is achieved with simultaneous high stock removal. Ø 40 x 0 medium / K 80 Ø 6 x fine / K 150 Ø 6 x very fine / K 40 Ø 6 x P Vmax 40 m/s Ø 50 x 0 medium / K 80 Ø 6 x fine / K 150 Ø 6 x very fine / K 40 Ø 6 x Ø 60 x 30 medium / K 80 Ø 6 x fine / K 150 Ø 6 x very fine / K 40 Ø 6 x Flap wheels with fleece lamellas, SiC, shank Ø 6 Head Grit size (fleece/cloth) Shank Order No. 10 pieces Flap wheels of combined abrasive fleece / cloth, non-sulphurous. With the combination of abrasive fleece / cloth, a uniform grinding pattern is achieved with simultaneous high stock removal. Ø 40 x 0 medium / K 80 Ø 6 x fine / K 150 Ø 6 x very fine / K 40 Ø 6 x P Vmax 40 m/s Ø 50 x 0 medium / K 80 Ø 6 x fine / K 150 Ø 6 x very fine / K 40 Ø 6 x Ø 60 x 30 medium / K 80 Ø 6 x fine / K 150 Ø 6 x very fine / K 40 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

160 . Grinding and polishing tools Ñ.9. Emery and fleece tools NEW! Cleaning flap wheels shank Ø 6 Cleaning flap wheels, type coarse shank Ø 6 Head dimensions Shank dimensions Order No. 100 pieces 50 pieces 10 pieces The ideal solution for cleaning with simultaneous surface preparation. For aggressive removal of rust, weld splatters, coating and paint. Also very suitable for deburring. Ø 45 x 15 Ø 6 x Ø 45 x 30 Ø 6 x Ø 55 x 15 Ø 6 x P Vmax 35 m/s Ø 55 x 30 Ø 6 x Ø 75 x 15 Ø 6 x Ø 75 x 30 Ø 6 x JOKE SPIROFLEX helical roll grinder JOKE SPIROFLEX helical roll grinder The solution for processing workpieces with complicated three-dimensional contours (e.g. aluminium injection moulds). A speciality: Process different diameters efficiently with one grinding point, as the tool perfectly adapts to every geometry. Another time-saving advantage: If the material is used up, a new tool is obtained by simply tearing off the worn material. Head dimensions Grit size Shank dimensions Packing unit Order No. 3 packs Ø Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces Ø 3 x pieces pack Ø 5 50 Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces Ø 6 x pieces

161 . Grinding and polishing tools Ñ.9. Emery and fleece tools Nylon cut-off discs Nylon cut-off discs, pack contents: 10 pieces Mounting hole size Matching receptacles Packing unit Order No. 10 packs High-grade corundum (brown) Ø x 0.3 Ø 1.5 1,, 3, 5 10 pieces Ø x 0.7 Ø 1.5 1,, 3, 5 10 pieces Ø x Ø 1.5 1,, 3, 5 10 pieces Ø x 3 Ø 1.5 1,, 3, 5 10 pieces Ø 5 x 0.5 Ø 1.5 1, 10 pieces Ø 5 x 0.7 Ø 1.5 1,, 3, 5 10 pieces Ø 5 x 0.8 Ø 1.5 1,, 3, 5 10 pieces Ø 5 x 1 Ø 1.5 1,, 3, 5 10 pieces Ø 34 x 1.65 Ø 1.5 1,, 3, 5 10 pieces Ø 37.5 x 1 Ø 1.5 1,, 3, 5 10 pieces Ø 40 x 1 Ø pieces Ø 40 x Ø pieces Ø 40 x 3 Ø pieces Ø 50 x 1 Ø pieces Ø 50 x Ø pieces pack Silicon carbide (grey) Ø x 0.7 Ø 1.5 1,, 3, 5 10 pieces Ø x Ø 1.5 1,, 3, 5 10 pieces Ø x 3 Ø 1.5 1,, 3, 5 10 pieces Ø 5 x 0.7 Ø 1.5 1,, 3, 5 10 pieces Ø 5 x 0.8 Ø 1.5 1,, 3, 5 10 pieces Ø 5 x 1.0 Ø 1.5 1,, 3, 5 10 pieces Ø 34 x 1.65 Ø 1.5 1,, 3, 5 10 pieces Ø 37.5 x 1 Ø 1.5 1,, 3, 5 10 pieces Ø 40 x 1 Ø pieces Ø 40 x Ø pieces matching mandrels Type Mounting hole size Max. wheel size, Shank dimensions Order No. 1 Ø Ø 37.5 x 4.5 Ø pieces 5 Ø Ø 37.5 x 4.5 Ø Ø Ø 37.5 x 4.5 Ø Ø Ø 37.5 x 4.5 Ø Ø 6.0 Ø 75 x 9.5 Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

162 . Grinding and polishing tools Ñ.9. Emery and fleece tools Cup wheel discs Cup wheel discs Grit size Colour Order No. 5 pieces These cup wheel discs are screwed onto the mandrel (Order No ) of the TURBO hand grinder. Thanks to the separate cup wheel disc receptacle, these tools can also be used with all coercially available rotating handpieces. Ø brown Ø brown Ø brown Shank Order No. Price Cup wheel disc receptacle Ø 3 x Only for clockwise rotation! Cup wheel disc on TURBO hand grinder Clamping For receiving the cup wheel discs and rubber holders on TURBO hand grinders. Cup wheel disc connected via receptacle on rotating ENESKA angle handpiece EKW cup wheel discs Grit size Order No. 5 piece /40 EKW cup wheel disc TOP quality Ø 100 x 50 x Hardness JOT, resin-hardened edge for grinding HSS 50 EKW cup wheel discs Ø Hardness JOT, resin-hardened edge for grinding HSS Ø 0 bore Rubber holder with thread Rubber holder Head dimensions Order No. 5 pieces Thanks to the thread, this rubber holder can be screwed directly onto the mandrel (Order No ) of the TURBO hand grinder like a cup wheel disc. Ø Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 41

163 . Grinding and polishing tools Ñ.9. Emery and fleece tools Abrasive discs Make sure the sparks fly not your abrasive disc Ñ Abrasive discs need to have a firm grip. Only then can they unleash their full power. In order to give them this grip, you can choose between three different types of fastening to the carrier. The largest choice of grit sizes and diameters is available for our self-adhesive abrasive discs. These disposable tools offer the most cost-efficient solution. Apart from the large range shown in our catalogue, we can also offer you some special solutions, such as our Soft version or SiC discs. Please discuss your requirements with Jürgen Meyer. Our abrasive discs with Velcro fastening ensure quick change-over times. In contrast to the self-adhesive version, these rubber holders can be re-used. The best adhesion is offered by our Snap- On system. Simply press the abrasive disc onto the rubber carrier and you are ready to go! With this solution, loose discs are definitely a thing of the past. These abrasive discs are thermically more durable and always sit centrically thanks to the innovative locking mechanism. Also with this system, the rubber holder can be re-used. Ñ You will find: NEW! Abrasive discs XXL Page 43 Abrasive discs, self-adhesive Page 44 Abrasive discs with Velcro fastening Page 46 Snap-On abrasive disc system Page 47 4 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

164 . Grinding and polishing tools Ñ.9. Emery and fleece tools NEW! Abrasive discs - XXL Ñ Abrasive discs - XXL These large discs are ideal for vertical processing and can also be used on lapping machines. They are supplied in two qualities: with Velcro fastening on the back or selfadhesive. Further grit sizes are available on request. Please contact Jürgen Meyer. i Velcro Vmax: 0 m/s nmax 1,300 rpm Self-adhesive Vmax: 13 m/s nmax 800 rpm Abrasive discs XXL, pack contents: 5 pieces Design Grit size Packing unit Order No. Packet Price Velcro fastening Ø pieces Ø pieces Self-adhesive Ø pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 43

165 . Grinding and polishing tools Ñ.9. Emery and fleece tools ROTAFLEX abrasive discs, self-adhesive ROTAFLEX abrasive discs, pack contents: 50 pieces Grit size Type Packing unit Order No. 5 packs 10 packs 1 pack For flexible grinding with suitable rubber holders. P Vmax 13 m/s Ø 1 50 R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces R 0 50 pieces Ø 0 50 R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces R 1 50 pieces Ø R 50 pieces R 50 pieces R 50 pieces R 50 pieces R 50 pieces R 50 pieces R 50 pieces R 50 pieces R 50 pieces R 50 pieces Ø R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces R 3 50 pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

166 . Grinding and polishing tools Ñ.9. Emery and fleece tools ROTAFLEX abrasive discs, self-adhesive ROTAFLEX abrasive discs, pack contents: 50 pieces Grit size Type Packing unit Order No. 5 packs 10 packs 1 pack Ø R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces R 4 50 pieces P Vmax 13 m/s Ø R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces R 5 50 pieces i Vmax: 13 m/s Disc Ø Nmax 0,700 rpm 1,400 rpm 7,500 rpm 4,500 rpm 3,800 rpm 3,300 rpm suitable rubber holders Shank dimensions Type Suitable abrasive discs Order No. 50 pieces 10 pieces The rubber holders for our ROTAFLEX abrasive discs. Shore hardness: 60 Shore A Ø 10 Ø 3 x 6 RK 0 R Ø 18 Ø.35 x 6 RK 1 R Ø 18 Ø 3 x 6 RK 1 R P Vmax 13 m/s Ø 30 Ø 3 x 6 RK R Ø 45 Ø 6 x 3 RK 3 R Ø 60 Ø 6 x 3 RK 4 R Ø 75 Ø 6 x 3 RK 5 R Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 45

167 . Grinding and polishing tools Ñ.9. Emery and fleece tools ROTAFLEX abrasive discs with Velcro fastening ROTAFLEX abrasive discs with Velcro fastening, pack contents: 100 pieces Grit size Packing unit Order No. 5 packs 10 packs 1 pack Thanks to the velour Velcro fastening on the back, these abrasive discs stick particularly well to their rubber holder. Ideal for re-use! P Vmax 0 m/s Ø pieces pieces pieces pieces pieces pieces pieces Ø pieces pieces pieces pieces pieces pieces pieces i Vmax: 0 m/s Disc Ø 0 33 Nmax 19,100 rpm 11,600 rpm Rubber holders with Velcro fastening Shank dimensions Order No. 10 pieces The matching rubber holders for abrasive discs with Velcro fastening. Unlike conventional stick-on discs, the rubber holder can be reused with other discs, once one has reached the end of its service life. Ø 18 Ø 3 x Ø 30 Ø 3 x Ø 30 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

168 . Grinding and polishing tools Ñ.9. Emery and fleece tools JOKE Snap-On abrasive disc system Snap-On abrasive discs, corundum, pack contents: 50 pieces Grit size Packing unit Order No. 10 packs 1 pack These abrasive discs feature an innovative fastening. They sit absolutely centrically and bomb-proof on their holder even heat generation cannot lessen the adhesive strength of our Snap-On system. P Vmax 40 m/s Ø pieces pieces pieces pieces pieces pieces pieces pieces Ø pieces pieces pieces pieces pieces pieces pieces pieces Ø pieces pieces pieces pieces pieces pieces pieces pieces i Vmax: 40 m/s Disc Ø Nmax 4,400 rpm 30,500 rpm 0,100 rpm 15,300 rpm Ø pieces pieces pieces pieces pieces pieces pieces pieces Snap-On rubber holders Shank dimensions Order No. 10 pieces The special fastening in the centre of the holder ensures the secure adhesion of the abrasive disc to the Snap-On system. Ø 19 Ø 3 x Ø 19 Ø 6 x Ø 5 Ø 3 x Ø 5 Ø 6 x Ø 38 Ø 6 x Ø 50 Ø 6 x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 47

169 . Grinding and polishing tools Ñ.9. Emery and fleece tools Tools for JOKE Multimaster Multimaster abrasive sheets Grit size Packing unit Order No. Packet Price 40 5 pieces pieces pieces pieces pieces pieces pieces pieces pieces suitable carrier plates Packing unit Order No. Packet Price unperforated pieces Dia-Speed abrasive sheets, Multimaster Bonding Grit size Colour Order No. Price Metal D 50 green D 16 black D 76 red D 46 yellow D 0 white Resin D 15 yellow D 7 blue D 3 orange Multimaster abrasive sheets Grit size Packing unit Order No. Packet Price i The all-round talent All information on JOKE Multimaster can be found on pages 36 and 37. For questions, please contact Jürgen Meyer: Tel +49 (0) 04 / j.meyer@joke.de 80 0 pieces pieces pieces pieces pieces pieces pieces pieces pieces pieces suitable carrier plates Packing unit Order No. Packet Price 7 high pieces high Velcro fastening on both sides pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

170 . Grinding and polishing tools Ñ.9. Emery and fleece tools Tools for JOKE Multimaster Multimaster carrier plates for sticking with abrasive cloths, felts and Diafoils etc. (for example) Design Order No. Price 15 x , Brass x , Brass x , Brass x , Brass x , Brass, conical x 70 fixed offset x 70 flat flexible x 50 convex x 50 concave Diamond hand files JOKE Multi Coating dimensions Total length Grit size Type Order No. Price Flat 15 x 15 x D 30 MS 15-D x 15 x D 54 MS 15-D x 15 x D 91 MS 15-D x 15 x D 16 MS 15-D x 5 x D 30 MS 5-D x 5 x D 54 MS 5-D x 5 x D 91 MS 5-D x 5 x D 16 MS 5-D Conical 15 x 15 x D 30 MS 15x -D x 15 x D 54 MS 15x -D x 15 x D 91 MS 15x -D x 15 x D 16 MS 15x -D suitable tool holders Order No. Price Tool adapters for MS files and plates Extension element 50 for MS file adapters

171 . Grinding and polishing tools Ñ.9. Emery and fleece tools Polinet abrasive sheets Polinet abrasive sheets Design Grit size Packing unit Order No. 0 piece 10 piece Corundum 30 x x x x x x x x x x x x x Silicon carbide 30 x x x x x Ñ Polinet abrasive sheets Useable on both sides for removing corrosion and adhesions and preparing for polishing. Suitable for all steels, stainless steels and tungsten carbides, etc. The open structure of the sheets rules out clogging uniform stock removal is achieved throughout the entire period of use. The sheets are suitable for use flat, curved or folded, on wet or dry applications. JOKE Schleiffix sanding block JOKE Schleiffix sanding block Colour Grit size Order No. 0 pieces A soft-bonded cleaning medium, which is interspersed with abrasive grain. The JOKE Schleiffix polishes and mattes. Its impact is enhanced if used with water, soap, petroleum and other liquids. 80 Red Green piece Yellow Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

172 . Grinding and polishing tools Ñ.9. Emery and fleece tools Silicon carbide sandpapers Silicon carbide sandpaper, C quality, contents: 50 pieces Grit Packing unit Order No. 5 packs 1 pack The well-known wet abrasive paper. Thanks to its very fine grain, it is suitable up to polish grinding. It can be used wet or dry on all steels and non-ferrous heavy metals. It is the secret weapon for aluminium! 30 x pieces pieces pieces pieces pieces pieces pieces pieces pieces pieces pieces pieces pieces NEW! Corundum abrasive sheets Schröder APC corundum abrasive sheets, C quality, contents: 100 pieces Grit Packing unit Order No. 5 packs 3 packs 1 packs The original Schröder paper, developed for polish grinding. Thanks to its special structure (fine grain, slurry coated application, high bonding, high filler content in the bond), you can achieve a very low surface roughness with this paper. In direct comparison, the grit pattern of these sheets appear finer than that of conventionally (electrostatically) gritted products. Application: rough-ground surfaces in tool and mould making, in mechanical workshops, turning shops etc. 30 x pieces pieces pieces pieces pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 51

173 . Grinding and polishing tools Ñ.9. Emery and fleece tools MX Padded abrasive cloth MX Padded abrasive cloth Built-on from a thin elastic layer between textile backing and grinding crystals, the MX abrasive cloth allows for incomparable padded grinding. The crystals are pressed into the elastic intermediate layer resulting in a plane removal surface. This prevents scratches on the workpiece and allows for a very even ground section result. i What are the benefits of padded grinding? Up to 15 times longer service life Distinctly finer ground section results with same grit size than with conventional abrasives Grit 400 corresponds to grit 800 or 1000 despite the high stock removal of the surface roughness Delayed friction and thus reduced heat build-up Large crystals No build-up edges Grit size Order No. Price 150 x Set Order No. Price MX abrasive cloth set One sheet per grit size Aluminium oxide abrasive sheets NEW! Aluminium oxide abrasive sheets Red aluminium oxide abrasive sheets: The ultimate choice for processing aluminium excellent surface quality is also achieved on light metals and tool steels. This abrasive offers an excellent service life. Suitable for dry or wet applications. Grit size Packing unit Order No. 5 packs 30 x pack 5 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

174 . Grinding and polishing tools Ñ.9. Emery and fleece tools NEW! Abrasive pads, self-adhesive Abrasive pads, self-adhesive Grit size Packing unit Order No. 5 packs 3 packs 1 pack Great idea, excellent product: These small abrasive pads are simply attached to one of the available holders to create a universal precision tool, which can be used manually or with hand-filing machines. There is a choice of three holders: Two with a fixed and one with a 180 swivel shank. 0 x Suitable holders Order No. 10 pieces 5 pieces Abrasive pad holder, 180 Redatable i Also available in felt! Why should this idea of the small self-adhesive pads be restricted to grinding?! We also offer a self-adhesive polishing felt in the same shape: shank Ø x total length 3 x 85 Abrasive pad holder shank Ø x total length 3 x 65 Abrasive pad holder Order No (Packaging unit: 50 pieces) shank Ø x total length 3 x 40 JOKE Quick Zip abrasive strips JOKE Quick Zip abrasive strips Self-adhesive, narrow abrasive strips made of high quality, flexible fabric. This innovation dispenses with the awkward cutting to length of the abrasive strips and time-consuming removal of the protective film. The Quick Zip strips are simply glued to the holder and can be used in all working directions. Grit size Order No. 5 pieces 7,5 x Suitable holders, shank Ø 3, 140 long Order No. 5 pieces 40 x 6 x 0,4 (conical) x 6 x 0, x 6 x 1,

175 . Grinding and polishing tools Ñ.9. Emery and fleece tools ROTAFLEX abrasive strips ROTAFLEX abrasive strips, self-adhesive Pack content: 10 pieces Grit size Order No. 10 packs 7 x Price from 1 pack 10 x x x Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

176 . Grinding and polishing tools Ñ.9. Emery and fleece tools ROTAFLEX abrasive strips, self-adhesive Pack content: 10 pieces ROTAFLEX abrasive strips Grit size Order No. 10 packs 10 x Price from 1 pack 50 x Grinding fleece rolls and pads Grinding fleece - rolls and pads Design Grit size Order No. 5 pieces Elastic material made from unwoven nylon fibres, within which the abrasive grain is uniformly distributed. The JOKE grinding fleece adapts to any surface and therefore allows consistent working results throughout its entire service life. This grinding fleece is ideal for fine grinding, cleaning, and elimination of corrosion and for very fine deburring. Can be used dry or with water, fluid or oil. Pad - corundum 9 x / very fine Pad silicon carbide 9 x / super-fine Roll corundum 100 x 10, / medium x 10, / medium x 10, / very fine Roll silicon carbide 100 x 10, / very fine x 10, / super-fine x 10, / ultra-fine i Grit size Fleece coarse medium fine very fine comparable to FEPA K K K 0-40 K Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 55

177 . Grinding and polishing tools Ñ.9. Emery and fleece tools Premium economy abrasive cloth rolls NEW! Premium economy abrasive cloth roll, 50 m, VSM, KK 114 F Width Grit size Order No. 10 pieces 5 pieces Suitable for removing milling, turning and erosion structures. Good for the preparation of workunits before processing with grinding stones and diamond compound Standard economy abrasive cloth rolls Standard economy abrasive cloth rolls, 50 m Width Grit size Order No. 3 pieces Definitely one of the best abrasive cloths in the world on 50 m rolls. The material is easy and clean to tear to the desired length piece Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

178 . Grinding and polishing tools Ñ.9. Emery and fleece tools Poly-Strip abrasive strips Ñ Poly-Strip abrasive strips This proven system provides the abrasive in the desired width and grit size for every application. Simply pull out the required length and cut off! A tear-off edge dispenses with tedious cutting with scissors. Abrasive strip rolls of 6, 10 and 15 width are held in two cassettes. The special cartridge allows the quick and easy exchange of the desired abrasive strip. Poly-Strip abrasive strip cassettes Order No. Price Poly-Strip abrasive strips, cassette of containing 1 abrasive strip roll each 15, roll length 5 m in grit size 150, 180, 40, 30, 400, 600 Poly-Strip abrasive strips, cassette of containing 1 abrasive strip roll each 6 and 10, roll length 5 m in grit size 150, 180, 40, 30, 400, 600 Spare Poly-Strip abrasive strip roll, 5 m Width Grit size Order No. Price

179 . Grinding and polishing tools Ñ.9. Emery and fleece tools Microgrinding strips Microgrinding strips,.5 m long Grit size Order No. Price Microgrinding strips offer fine finishing of surfaces and reproducible grinding results. Aluminium oxide = hard synthetic abrasive grain for metals and plastics. Good anchoring of abrasive on the base by means of synthetic resin-based binders, which are resistant to heat and water. The special polyester film carrier material offers excellent uniformity in terms of material thickness, is waterproof and resistant to conventional lubricants and solvents. 6 x 0.4 K 150 / 100 µm K 180 / 80 µm K 40 / 60 µm K 360 / 40 µm K 560 / 30 µm K 1000 / 15 µm x 0.4 K 150 / 100 µm K 180 / 80 µm K 40 / 60 µm K 360 / 40 µm K 560 / 30 µm K 1000 / 15 µm i Ideal also for use in Poly-Strip cassettes! With a roll length of.5 m, microgrinding strips can also be used in Poly-Strip cassettes (see previous page). Poly-Strip abrasive strip holder Holder for Poly-Strip abrasive strips Shank dimensions Order No. Price 6 x 1 x 6 Ø 3.5 x x 1 x 50 Ø 3.5 x x 1 x 6 Ø 3.5 x x 1 x 50 Ø 3.5 x x 1 x 6 Ø 3.5 x x 1 x 50 Ø 3.5 x Sets Order No. Price Poly-Strip abrasive strip holder set contains one Poly-Strip abrasive strip holder in 6 length each Poly-Strip abrasive strip holder set contains one Poly-Strip abrasive strip holder in 50 length each 58 Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

180 . Grinding and polishing tools Ñ.9. Emery and fleece tools NEW! Gesswein abrasive bands Gesswein abrasive bands Width Grit size Packing unit Order No. Pack. Price These abrasive bands and their holders are a must for every professional workplace. They are tightened by means of the built-in spring and offer a bomb-proof adhesion to the holder. The holder itself is made from shock-resistant polypropylene and is therefore suitable even for the toughest of applications pieces pieces pieces pieces pieces i No mix-ups possible In order to avoid mix-ups, we recoend a dedicated holder colour for each grit size. For example: K 10 Red K 40 Blue K 30 Green K 400 Yellow K 600 Black pieces pieces pieces pieces pieces pieces pieces pieces pieces pieces Abrasive band holder Colour Order No. Price 7 Red Blue Green Yellow Black Abrasive band holder Colour Order No. Price 13 Red Blue Green Yellow Black Abrasive band holder Colour Order No. Price 19 Red Blue Green Yellow Black Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 59

181 . Grinding and polishing tools Ñ.9. Emery and fleece tools Corundum abrasive bands for JOKEFLEX Power belt grinders Abrasive bands, corundum, brown, resin bond Suitable belt grinder Grit Packing unit Order No. 10 packs 1 pack These high-performance abrasive bands were specially developed for use on the JOKEFLEX Power motor system. They are excellently suited for difficult work on steel, stainless steel, non-ferrous metal and also for machining plastic. 3 x 50 KA 5/ pieces x 305 KAK 16/4, KAK 5/9, KAK 5/ pieces x 305 KAK 16/4, KAK 5/9, KAK 9/ pieces KAK 16/4, KAK 5/9, KAK 9/ pieces KAK 16/4, KAK 5/9, KAK 9/ pieces KAK 16/4, KAK 5/9, KAK 9/ pieces x 50 KA 16/4, KA 5/ pieces KA 16/4, KA 5/ pieces KA 16/4, KA 5/ pieces KA 16/4, KA 5/ pieces x 305 KAK 16/9, KAK 5/9, KAK 9/ pieces KAK 16/9, KAK 5/9, KAK 9/ pieces KAK 16/9, KAK 5/9, KAK 9/ pieces KAK 16/9, KAK 5/9, KAK 9/ pieces x 50 KA 16/ pieces KA 16/ pieces KA 16/ pieces KA 16/ pieces x 50 KA 19/ pieces KA 19/ pieces KA 19/ pieces KA 19/ pieces x 50 KA 3/ pieces KA 3/ pieces KA 3/ pieces KA 3/ pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

182 . Grinding and polishing tools Ñ.9. Emery and fleece tools Fleece abrasive bands for JOKEFLEX Power belt grinder Fleece abrasive bands, corundum and SiC Suitable belt grinder Grit size Packing unit Order No. 10 packs 1 pack These abrasive bands are excellently suited for cleaning, deburring and fine grinding of steel and stainless steel. In the ultra fine grit size, these fleece bands are also suitable for deburring synthetic materials and plastic. They can be used dry, with water, fluid or oil. 6 x 305 KAK 9/9, KAK 5/9 coarse 0 pieces KAK 9/9, KAK 5/9 medium 0 pieces KAK 9/9, KAK 5/9 very fine 0 pieces KAK 9/9, KAK 5/9 super-fine 0 pieces x 50 KA 16/4, KA 5/9 coarse 0 pieces KA 16/4, KA 5/9 medium 0 pieces KA 16/4, KA 5/9 very fine 0 pieces KA 16/4, KA 5/9 ultra-fine 0 pieces x 305 KAK 16/9, KAK 5/9 medium 0 pieces KAK 16/9, KAK 5/9 very fine 0 pieces KAK 16/9, KAK 5/9 super-fine 0 pieces x 50 KA 16/9 coarse 0 pieces KA 16/9 medium 0 pieces KA 16/9 very fine 0 pieces KA 16/9 super-fine 0 pieces KA 16/9 ultra-fine 0 pieces x 50 KA 19/1 coarse 0 pieces KA 19/1 medium 0 pieces KA 19/1 very fine 0 pieces x 50 KA 3/18 coarse 0 pieces KA 3/18 medium 0 pieces KA 3/18 very fine 0 pieces KA 3/18 super-fine 0 pieces KA 3/18 ultra-fine 0 pieces i Grit size Fleece coarse medium fine very fine comparable to FEPA K K K 0-40 K Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 61

183 . Grinding and polishing tools Ñ.10. Ultrasonic tools Diamond tools for ultrasonic systems galvanic bonding Diamond tools for ultrasonic systems, galvanic bonding Grit size Thread design Flat 4 x 1 x M6/fine x 1 x M6/fine x 1 x M6/fine x 1 x M6/fine Order No. Price 5 x 1 x M6/fine x 1 x M6/fine x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M Flat/conical 4 x 0.8/0.5 x M x 0.8/0.5 x M x 0.8/0.5 x M x 0.4/0.8 x M6/fine x 0.4/0.8 x M6/fine x 0.4/0.8 x M6/fine x 1/1.5 x 0 00 M6/fine x 1/1.5 x 0 30 M6/fine x 1/1.5 x M6/fine x 1/1.5 x 0 00 M6/fine x 1/1.5 x 0 30 M6/fine x 1/1.5 x M6/fine Flat/angle 4 x 1 x M x 1 x M x 1 x M x 1 x M6/fine x 1 x M6/fine x 1 x M6/fine Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

184 . Grinding and polishing tools Ñ.10. Ultrasonic tools Diamond tools for ultrasonic systems galvanic bonding Diamond tools for ultrasonic systems, galvanic bonding Grit Thread Order No. Price size design Round/pointed Ø 3 x M Ø 3 x M Ø 3 x M Ø 3 x M6/fine Ø 3 x M6/fine Ø 3 x M6/fine Round/cylinder Ø 1 x 7 00 M Ø 1 x 7 30 M Ø 1 x M Ø 1 x 7 00 M6/fine Ø 1 x 7 30 M6/fine Ø 1 x M6/fine Ø x 7 00 M6/fine Ø x 7 30 M6/fine Ø x M6/fine Ø 3 x 7 00 M Ø 3 x 7 30 M Ø 3 x M Three-square/pointed 3 x 3 x 3 x M x 3 x 3 x M x 3 x 3 x M x 3 x 3 x M6/fine x 3 x 3 x M6/fine x 3 x 3 x M6/fine Oval/pointed 3 x 1.7 x M6/fine x 1.7 x M6/fine x 1.7 x M6/fine Ø 3 x x M Ø 3 x x M Ø 3 x x M Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 63

185 . Grinding and polishing tools Ñ.10. Ultrasonic tools Diamond tools for ultrasonic systems metal bonding Diamond tools for ultrasonic systems, metal bonding Grit size Thread design Flat x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M Order No. Price 3 x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1 x M x 1.5 x 0 00 M6/fine x 1.5 x 0 30 M6/fine x 1.5 x M6/fine x x M x x M x x M Round/cylinder Ø x 7 00 M Ø x 7 30 M Ø x M Ø 3 x M6/fine Ø 3 x M6/fine Ø 3 x M6/fine Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de

186 . Grinding and polishing tools Ñ.10. Ultrasonic tools Ruby stones Ñ Ruby stones Suitable for small-scale deburring work. These ruby stones allow you to work very softly, whilst achieving sharp edges. They allow easy profiling through diamond tools. Ruby stones Grit size Thread design Flat x x M Order No. Price 3 x 3 x M x x M Round/cylinder Ø x M Ø 3 x M Wooden and brass polishing sticks Wooden and brass polishing sticks Shape Packing unit Order No. Price Hard beech wood Ø 3 Round/cylinder Ø 3 x pieces x 6 40 Flat 6 x 3 x pieces Brass Ø Round/cylinder Ø x 40 5 pieces Ø 3 x Round/cylinder Ø 3 x 40 5 pieces Flat 10 x x 40 5 pieces Tel. +49 (0) 04 / Fax +49 (0) 04 / info@joke.de 65