Flap Disc,Coarse,Polyester Cloth
-11, Connector Type Threaded Hole, Density Rating High, Flap Disc Type Type 27, Overall Diameter 4 1/2 in, Series 577F, Backing Material Polyester, Backing Weight YF, Coating Coverage Closed, Grit 40, Maximum Operating Speed 13,300 RPM, Color Green, Features Performance Coated.Flap Disc, Abrasive Type Coated, Abrasive Material Zirconia Alumina, Grade Coarse, Backing Plate Material Fiberglass, Connector Size 5/8 In.