Using A Die Grinder, Benchmark Abrasives 3" Quick Change Nylon Surface Benchmark Abrasives 3" quick change non-woven surface conditioning discs are used for deburring, leveling, finishing, castings, blending, polishing, etc. The nylon material of the discs works effectively and removes surface oxidation and rust on metal surfaces. Type R fastening system ensures quick and easy attachment. Designed to meet industrial standards, our quick-change discs are recommended to be used with high-speed power tools such as die grinders and hand-held pneumatic grinders. Efficient quick-change discs are used in various industries like automotive, transportation, mining, shipbuilding, foundries, construction, welding, fabrication, etc. All of our abrasive products are made with quality materials and exceed both ANSI and EU European Standards. We trust in delivering high-quality products to the end-user. Customer satisfaction is the lifeline of our brand.