Flap Disc Abrasive Type Coated Abrasive Material Ceramic Grade 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 Blaze R980P Backing Material Polyester Backing Weight Y Coating Coverage Closed Grit 80 Maximum Operating Speed 12 000 RPM Color Blaze Features Longer Abrasive Flaps Resistance Properties Fray