Fiber Disc, Abrasive Type Coated, Abrasive Material Aluminum Oxide, Backing Material Fiber, Backing Weight Not Applicable, Grit 36, Overall Diameter 7 in, Series Fiber Disc, Maximum Operating Speed 8,000 RPM, Connector Size 7/8 in, Connector Type Unthreaded Hole, Color Red, Grade Extra Coarse, Package Quantity 25