Chicago-Latrobe Heavy Duty Jobber Length Drill Bit, Series: 550ASP, Metric/Imperial, 0.154 in Drill - Metric, 0.1535 in Drill - Inch Decimal, 2.953 in Overall Length, 5XD Depth of Cut, 2 Right Spiral Flutes, 1.693 in Flute Length, Dia x 1.260 in L, Straight Shank, 135 Degree Tip, Split Point, Right Hand Cutting Direction, M42 HSS-Co 8% Cutting Edge, M42 HSS-Co 8% Cutting Edge, Straw Oxide, Applicable Materials: Alloy Steel, Stainless Steel, and Titanium