Irwin 31520 5/16-Inch Cobalt Alloy Steel 135-Degree Left Handed-Mechanics Length Pack Of 6
$53.70
Irwin 5/16" Cobalt 135 - Left Handed-Mec 31520 - Metal Twist Drilling
- 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
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