H5961 Flap Disc Abrasive Type Coated Abrasive Material Zirconia Alumina Grade Extra Coarse Backing Plate Material Plastic Connector Size 5/8 In.-11 Connector Type Threaded Hole Density Rating Standard Flap Disc Type Type 27 Overall Diameter 5 in Series BlueFire R884P Backing Material Cotton Backing Weight Y Coating Coverage Semi-Open Grit P36 Maximum Operating Speed 12 000 RPM Color Blue Features Trimmable