drill bits & sets
irwin industrial tool ha30507 7 64 cobalt 135 degree left handed mechanics length
left hand mechanics length cobalt high speed steel drill bits 764 features constructed of m 42 8 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 ideal for use with screw extractors flute length 1 in overall length 2 3 16 in sku eglt20811
irwin industrial