H7370 Flap Disc Abrasive Type Coated Abrasive Material Zirconia Alumina Grade Medium Backing Plate Material Phenolic Connector Size 7/8 in Connector Type Unthreaded Hole Density Rating Standard Flap Disc Type Type 29 Overall Diameter 7 in Series Tiger Paw Backing Material Phenolic Backing Weight X Grit 60 Maximum Operating Speed 8 600 RPM Color Blue