Irwin® Hanson 63120 Jobber Length Drill Bit, Fractional Drill Size: 5/16 Inch, Point Angle: 135 deg, Point Type: Split, Cobalt, Grade: M-35, Gold Oxide, Flute Length: 3-3/16 Inch, Shank Type: Straight, Shank Diameter: 5/16 Inch, Shank Length: 1-1/3 Inch, Overall Length: 4-1/2 Inch