Flap Disc, Abrasive Type Coated, Abrasive Material Ceramic, Grade Coarse, Backing Plate Material Phenolic, Connector Size 7/8 in, Connector Type Unthreaded Hole, Flap Disc Type Type 29, Overall Diameter 4 1/2 in, Series Tiger Ceramic, Backing Material Phenolic, Backing Weight X, Grit 40, Maximum Operating Speed 13,000 RPM, Features Performance Coated