Flap Wheel, Abrasive Material Aluminum Oxide, Abrasive Type Coated, Backing Material Cotton, Backing Weight Y, Grit P240, Series R369, Flap Width 3/4 in, Maximum Operating Speed 35,000 RPM, Shank Size 1/8 in, Overall Diameter 3/4 in, Shank Type Straight, Coating Coverage Closed