Flap Wheel, Abrasive Material Aluminum Oxide, Abrasive Type Coated, Backing Material Cotton, Backing Weight X, Grit 60, Series Not Applicable, Flap Width 3/4 in, Maximum Operating Speed 25,000 RPM, Shank Size 1/4 in, Overall Diameter 1 1/2 in, Grade Coarse, Shank Type Straight