Monster Tool Company 1-1/4 x 3/4 100-Deg. Single FL Carbide Countersink, 67570, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials, Diameter: 1-1/4, Number of Flutes: 1, Single End, Right Hand Cut, Included Angle: 100-Degree, Overall Length: 3-1/2, Shank Diameter: 3/4, Material Base: Carbide, Material Construction: Brazed, Finish / Coating: AlTiN, MPN: 67570, PKG QTY: 1 PC