Monster Tool Company 5/16 (0.3125) Carbide Spot Drill 90-Deg., Diameter: 5/16, Number of Flutes: 2, Single End, Right Hand Cut, Included Angle: 90-Degree, Overall Length: 2-1/2, Shank Diameter: 5/16, Application: Designed for exceptional precision and higher speeds and feeds. Short flute and overall lengths provide superior rigidity., Material Base: Carbide, Finish / Coating: Uncoated, MPN: 67948, PKG QTY: 1 PC