Monster Tool Company 3/4 x 1/2 90-Deg. Single FL Carbide Countersink, 75185, Designed for general purpose countersinking, chamfering and deburring in most ferrous and non-ferrous materials, Diameter: 3/4, Number of Flutes: 1, Single End, Right Hand Cut, Included Angle: 90-Degree, Overall Length: 2-7/8, Shank Diameter: 1/2, Material Base: Carbide, Material Construction: Brazed, Finish / Coating: AlTiN, MPN: 75185, PKG QTY: 1 PC