Abrasive Point, Abrasive Material Aluminum Oxide, Max. Speed 81,370 RPM, Shape Cone, Head Width 5/16 in, Head Length 3/8 in, Tool Brand Eazypower, Overall Length 3/8 in, Mounting Type Mounted, Point Diameter 5/16 in, Abrasive Shank Diameter 1/8 in, Material Application Ceramic, Glass, Metal, Stone, Wood, Number of Pieces 1