Flap Disc, Abrasive Type Coated, Abrasive Material Ceramic, Grade Extra Coarse, Backing Plate Material Fiberglass, Connector Size 5/8 In.-11, Connector Type Threaded Hole, Density Rating High, Flap Disc Type Type 27, Overall Diameter 7 in, Series Blaze R980P, Backing Material Polyester, Backing Weight Y, Grit 40, Maximum Operating Speed 8,600 RPM, Color Orange, Features Performance Coated, Resistance Properties Fray