Irwin Cobalt Drill Bits, 3/16"SKU: M457220 63112ZR
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- M457220 63112ZR
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- 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° split point reduces feed pressure for easier penetration without work hardening
3/16", 1-1/8" twist length, 2-3/16" overall length.