Fiber Disc Abrasive Type Coated Abrasive Material Ceramic Backing Material Fiber Backing Weight X Grit 80 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