Weiler 50903 BobCat 3" Diameter, 40 Grit, Zirconium, Plastic Backing, Type 29 Specialty Abrasive Flap Mini Disc Grinding and finishing in one step Grinding, deburring and blending on steel, stainless steel and other metals Jobs requiring high aggression and rapid stock removal Metal fabrication requiring light weld blending or edge chamfering