Irwin
- 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
3/8", 1-13/16" twist length, 3-1/8" overall length.