Irwin 63121 63121 - DRL 21/64 COB JL 135' BULK

63121. 21/64" COBALT 135 DEGREE JOBBER DRILL BIT. Drill Bit, Cobalt, 135 Degree Point, Jobber Length, 21/64", Bulk IRWIN offers a complete line of Metal Twist Drill Bits, including Black Oxide, Turbo Point, Titanium Nitride, and Cobalt Drill Bits. Ideal for drilling into hardened steel, alloys, titanium and stainless steel. Constructed of M-42 5 percent cobalt high speed steel for super abrasive resistance in tough metals. Heavy duty spiral flute design produces faster chip ejection. Shorter cutting lips reduce torque for drilling in high tensile strength materials. 135-degree split point reduces feed pressure for easier penetration without work hardening.