Irwin Industrial Tools 63221 Cobalt Fractional Straight Shank Jobber Length Metal Index Drill Bit Set, 21-Piece

Drill bits are made of M-42 5% cobalt high-speed steel for super abrasive resistance in tough metals

135° split point reduces feed pressure for easy penetration without work hardening

Each drill bit has a heavy-duty spiral flute design that produces faster chip ejection

Shorter cutting lips reduce torque for drilling in high-tensile-strength materials

Cobalt drill bit set comes in a metal index case

Constructed of M-42 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-Degree split point reduces feed pressure for easier penetration without work hardening

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.
Brand: Irwin Tools, Model: 63221, Color: Gold metallic, Size: 21pc Metal Index