Designed to meet industrial standards, our quick change disc are recommended to be used with high-speed power tools such as die grinders hand-held pneumatic grinders. The self-sharpening zirconia grains are designed for aggressive stock removal, enhanced surface quality, and long life. Well-suited discs are effective to use on ferrous and non ferrous metals. NATIONAL STANDARD - R Type - Quick change discs are used for metal stock removal, deburring, removing sealant corrosion, levelling, finishing castings, blending, polishing, etc. Efficient zirconia 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. NATIONAL STANDARD - R Type - Quick change discs are used for metal stock removal, deburring, removing sealant corrosion, levelling, finishing castings, blending, polishing, etc.