This IRWIN Unibit #3 Cobalt Step Drill Bit is engineered with M-35-grade cobalt steel for maximum life when drilling in tough steel. The SpeedPoint tip provides fast starts and features laser-marked sizes for easy reading. The radial concave flute design helps ensure an effective use of drilling power.
Features:
- DESIGNED FOR HEAVY-DUTY CUTTING: Positive fixed blade retention for optimized performance
