J0812 Quick-Change Sanding Disc Abrasive Type Coated Abrasive Material Ceramic Backing Material Polyester Backing Weight 3-Ply Coating Coverage Closed Grade Coarse Grit 50 Overall Diameter 1 1/2 in Quick Change System TS Series Blaze R980P Maximum Operating Speed 30 000 RPM Resistance Properties Heat Load Color Orange Package Quantity 100