J0611 Flap Wheel Abrasive Material Aluminum Oxide Abrasive Type Coated Backing Material Cotton Backing Weight X Grit P60 Series R369 Flap Width 3/8 in Maximum Operating Speed 35 000 RPM Shank Size 1/8 in Overall Diameter 3/4 in Grade Coarse Shank Type Straight Coating Coverage Closed Resistance Properties Wear