Irwin 3016031ZR Cobalt High Speed Steel Fractional 3/8 Reduced Shank Jobber Length Drill Bit - 31/64"

30160 Series. Standard Cobalt bit with 3/8" reduced shank. 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-degree split point reduces feed pressure for easier penetration without work hardening. Applications: Tough metal drilling, including heavy-duty abrasive alloy metal drilling on hardened steel (heat-treated). Carded. Size: 31/64". Decimal Equiv: .4844. Flute Length: 2". Overall Length: 3-1/8".