SGS Pro Carbide Burr, Imperial, Series: Universal SB, 1/2 in Head Dia, 1 in Length of Cut, 2-3/4 in Overall Length, Cylindrical โ With End Cut (Shape SB) Head Shape, Double Cut Cut Type, 1/4 in Shank Dia, Solid Carbide Head, 28000 rpm Maximum, Applicable Materials: Ferrous and Non-Ferrous Metals, SB-5 Industry Specification