SGS Pro Edge Hog Carbide Burr, Imperial, Series: Universal SA, Flat, 1/4 in Head Dia, 5/8 in Length of Cut, 2 in Overall Length, Cylindrical โ No End Cut (Shape SA) Head Shape, Double Cut Cut Type, 1/4 in Shank Dia, Solid Carbide Head, 55000 rpm Maximum, Applicable Materials: Ferrous and Non-Ferrous Metals, SA-1 Industry Specification