Interleaf Flap Wheel, Abrasive Material Aluminum Oxide, Abrasive Type Coated/Non-Woven, Backing Material Nylon, Backing Weight Not Applicable, Grit 120, Series Interleaf, Flap Width 1 1/2 in, Maximum Operating Speed 12,000 RPM, Shank Size 1/4 in, Overall Diameter 2 in, Grade Very Fine, Shank Type Straight