Norseman Drill 25680 Screw Machine Length Drill Bit, Type 135, Heavy-Duty, Fractional Drill Size: 1/4 Inch, Point Angle: 135 deg, Point Type: Split, Flute Length: 1-3/8 Inch, Shank Length: 1-1/8 Inch, Overall Length: 2-1/2 Inch