Monster Tool Company 5/16 (0.3125) Carbide Stub Drill AlTiN, Diameter: 5/16, Number of Flutes: 2, Single End, Right Hand Cut, Included Angle: 135-Degree, Overall Length: 2-13/16, Shank Diameter: 5/16, Application: Precision drilling in cast iron, stainless steel, tool steel, titanium and nickel alloys. AlTiN, MPN: 68562, PKG QTY: 1 PC