Fiber Disc, Abrasive Type Coated, Abrasive Material Ceramic, Backing Material Fiber, Backing Weight X, Grit 50, Overall Diameter 5 in, Series F980, Maximum Operating Speed 10,000 RPM, Resistance Properties Tear, Connector Size 7/8 in, Connector Type Unthreaded Hole, Color Orange, Features Self-Lubricating Grinding Aid, Grade Coarse, Package Quantity 25