Chicago-Latrobe Heavy Duty Jobber Length Drill Bit, Series: 550, Metric/Imperial, 0.453 in Drill, Metric, 0.4528 in Drill, Decimal Inch, 5.591 in Overall Length, 5XD Depth of Cut, 2 Flutes, Right Hand Spiral Flute, 3.701 in Flute Length, 0.453 in Diameter x 1.890 in Long Straight Shank, 135 Degree Point, Split Point, Cutting Direction Right Hand, Cutting Edge M42 HSS-Co 8%, Cutting Edge M42 HSS-Co 8%, Straw Oxide, Applicable Materials: Alloy steel, stainless steel, titanium and tool steel