Monster Tool Company 21/64 (0.3281) Carbide Twist Drill, Diameter: 21/64, Number of Flutes: 2, Single End, Right Hand Cut, Included Angle: 118-Degree, Overall Length: 4, Shank Diameter: 21/64, Application: Precision drilling in: non-ferrous alloys, cast iron, plastics, aluminum and highly abrasive materials. Uncoated, MPN: 68040, PKG QTY: 1 PC