J0617 Flap Wheel Abrasive Material Aluminum Oxide Abrasive Type Coated Backing Material Cotton Backing Weight J Grit P80 Series NEON Flap Width 3/8 in Maximum Operating Speed 40 000 RPM Shank Size 1/8 in Overall Diameter 3/8 in Grade Coarse Shank Type Straight Coating Coverage Closed Resistance Properties Wear