Fiber Disc Abrasive Type Coated Abrasive Material Zirconia Alumina Backing Material Fiber Backing Weight X Grit 36 Overall Diameter 5 in Series BlueFire F826P Maximum Operating Speed 10 000 RPM Resistance Properties Tear Connector Size 7/8 in Connector Type Unthreaded Hole Color Blue Grade Extra Coarse Package Quantity 10