Interleaf Flap Wheel, Abrasive Material Aluminum Oxide, Abrasive Type Coated/Non-Woven, Backing Material Not Applicable, Backing Weight X, Grit P120, Series CB-ZS, Flap Width 1 3/4 in, Maximum Operating Speed 8,000 RPM, Shank Size 1/4 in, Overall Diameter 3 in, Grade Medium, Shank Type Straight