Dormer Screw Machine Drill, General Purpose, Series: A022, Metric/Imperial, 7.1 mm Drill - Metric, 0.2795 in Drill - Decimal Inch, 74 mm Overall Length, 2.5XD Cutting Depth, 2 Flutes, Spiral Flute, 34 mm Flute Length, 7.1 mm 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