This IRWIN Left-Hand Cobalt HSS Fractional Mechanics-Length Drill Bit is made from 8% cobalt-alloyed steel for higher heat- and abrasion-resistance. A shorter length provides additional strength. The drill bit is useful for drilling into fasteners without tightening them and can often remove broken fasteners without the use of an extractor.
- This drill bit features 8% cobalt-alloyed steel construction for high heat- and abrasion-resistance
- Shorter drill bit length provides additional strength
- Drill bits have a heavy-duty spiral flute design that produces faster chip ejection
- This drill bit features 8% cobalt-alloyed steel construction for high heat- and abrasion-resistance
- Shorter drill bit length provides additional strength
- Drill bits have a heavy-duty spiral flute design that 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-material hardening
- This drill bit features 8% cobalt-alloyed steel construction for high heat- and abrasion-resistance
- Shorter drill bit length provides additional strength
- Drill bits have a heavy-duty spiral flute design that produces faster chip ejection
- This drill bit features 8% cobalt-alloyed steel construction for high heat- and abrasion-resistance
- Shorter drill bit length provides additional strength
- Drill bits have a heavy-duty spiral flute design that 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-material hardening
