ATA SGSPRO, 15528, Carbide Burr, Imperial, Series: Universal SM, 1/4 in Diameter Head, 3/4 in Length of Cut, 2 in Overall Length, Cone Head Shape, Double Cut, 1/4 in Shank Diameter, Solid Carbide Head, 14 deg Included Angle, 55000 rpm Maximum, Applicable Materials: Ferrous and Non-Ferrous Metals, Industry Specification: SM-2