Cartridge Roll, Cartridge Roll Design Tapered, Pilot Hole Diameter 1/8 in, Abrasive Material Aluminum Oxide, Abrasive Type Coated, Series 341D, Backing Material Cloth, Backing Weight X, Grit 60, Maximum Operating Speed 24,000 RPM, Overall Diameter 1/2 in, Overall Length 1 1/2 in, Coating Coverage Closed, Color Brown