Size Grit Maxrpm Type 2? 36# 40# 60# 80# 120# 30.000 R S 3? 36# 40# 60# 80# 120# 25.000 R S Characteristics: Premium Zirconia and Ceramic, Ideal disc for material removal and blending on ferrous metals where accessibility is a problem or the work area need to be kept to a minimum. Improved access to awkward areas Minimising the area of repair/work to reduce time spent on further finishing operations Exceptional life compared to traditional coated abrasives discs of the same diameter Quickchange locking systems for convenient, quick changeover of discs