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- Drill bits made of M-42 8% cobalt high-speed steel for super abrasive resistance in tough metals
- 135° split point reduces feed pressure for easier penetration without work hardening
- Each drill bit has a heavy-duty spiral flute design that produces fast chip ejection
- Shorter cutting lips reduce torque for drilling in high-tensile-strength materials
- IRWIN drill bits are great for use with screw extractors
- Includes: 5/64-Inch, 7/64-Inch, 5/32-Inch and 19/64-Inch
- 135 Degree split point
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