Monster Tool Company 3/4 x 3/8 120-Deg. 3FL Carbide Countersink, 67664, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials, Diameter: 3/4, Number of Flutes: 3, Single End, Right Hand Cut, Included Angle: 120 3 3/8, Material Base: Carbide, Material Construction: Brazed, Finish / Coating:, MPN: 67664, PKG QTY: 1 PC