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Irwin Hanson

21 Pieces Cobalt Drill Bit Set

This IRWIN Cobalt High-Speed Steel Drill Bit Set includes drill bits made of M-42 5% cobalt high-speed steel for super abrasive resistance in tough metals. The 135° split point reduces feed pressure for easy penetration without work hardening, while the heavy-duty spiral flute design produces faster chip ejection. These versatile drill bits come in a metal index case for easy transport and organization.

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  • Up to 3/8 by 1/64ths.
  • 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.

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