IRWIN Left-Hand Mechanics Length Cobalt High Speed Steel Drill Bit, 1/4in

Constructed of M-42 8% cobalt high speed steel for super abrasive resistance in tough metals Shorter cutting tips reduce torque for drilling in high tensile strength materials 135-degree split point reduces feed pressure for easier penetration without work hardening Ideal for use with screw extractors Heavy-duty spiral flute design produces faster chip ejection