1-1/2 in. M42 Cobalt Reduced Shank Drill Bit with 1/2 in. Shank

Drill America D/ACO Cobalt Reduced Shank Drill Bit. D/ACO cobalt drill bits are made of heat resistant m42 cobalt. They are ground to a heavy-duty 135° split point. They are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys.Effective in drilling tough, high tensile strength materials like stainless steel, Inconel, and titaniumDisplay high red hardness, permitting speeds up to 30% greater than with conventional M2 high speed steelManufactured to National Aerospace standard 907135° split point is self-centering and reduces thrustAll drills have 3 in. flute length and 6 in. overall length for minimal adjustment during tool changesExpand the size range capacity of a portable drill chuck