WHOLESALE Includes all 4 most necessary grits.Diameter: 2 inchHeigh: 1 inch Shank diameter: 1/4 inch RPM: 20,000 Strips paint from any surface.Quickly shapes and finishes wood.1/4 inch shank fits securely into any power drill chuck.Includes: 1pc 40 grit, 1pc 60 grit, 2pc 80 grit, and 1pc 120 grit.Illinois Industrial Tools