Monster Tool Company #4 60-Deg. Carbide Center Drill AlTiN, Diameter: 4, Number of Flutes: 2, Double End, Right Hand Cut, Included Angle: 60-Degree, Overall Length: 2-1/8", Shank Diameter: 2-1/8", Drill and countersink in a single pass, USA Made, Material Base: Carbide, Finish / Coating: AlTiN, MPN: 66642, PKG QTY: 1 PC