Irwin 63105ZR 63105ZR - DRL 5/64 COB JL 135' BULK

63105ZR. Jobber Length Drill Bit, 5/64 in Dia x 2 in L. 1 in L Spiral Flutes. Straight Shank, Gold Oxide. Constructed of M-35 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 Deg split point reduces feed pressure for easier penetration without work hardening.