GARR Jobber Length Drill Bit, Series: 1100, Imperial, 0.4528 in Drill - Decimal Inch, 120 mm Overall Length, 5XD Cutting Depth, 3 Flutes, Spiral Flute, 76 mm Flute Length, 0.4528 in Shank, 150 deg Point, Self-Centering Point, Right Hand Cutting Direction, Submicron Grain Solid Carbide Cutting Edge, Submicron Grain Solid Carbide, Bright, Applicable Materials: Cast Iron, Tungsten and Materials with High Silicon Content