Quick Change Disc, Abrasive Type Coated, Disc Attachment System TR Roll-On/Off, Disc Attachment Type Type 3, Disc Diameter 1 1/2 in, Abrasive Grit 80, Abrasive Grade Coarse, Abrasive Material Ceramic, Disc Backing Material Cloth, Max. RPM 30,000 RPM, Series R980, Backing Weight Y, Color Orange, Package Quantity 100