Dormer Screw Machine Drill, General Purpose, Series: A022, Imperial, 13/32 in Drill - Fraction, 0.4062 in Drill - Decimal Inch, 86 mm Overall Length, 2.5XD Cutting Depth, 2 Flutes, Spiral Flute, 51 mm Flute Length, 13/32 in Shank, Straight Shank, 135 deg Point, Split/Self-Centering Point, Right Hand Cutting Direction, HSS Cutting Edge, HSS, TiN, Gold, Applicable Materials: Steels With Low to High Resistance