K cobalt heavy duty drill bit set (12) D/ACO
Cobalt steel drill bits with gold oxide surface for drilling harder metals. Round shanks compatible with various toolholding systems. One customer notes longer life and sharp, clean cuts
Highlights
- cobalt steel for harder metals
- round shank versatility
- aerospace standard 907
Pros
- cobalt steel composition improves performance on hard metals
- round shanks for broad toolholding compatibility
- gold oxide coating differentiates surface treatment
- efficient chip ejection in counterclockwise right-hand cut
- manufactured to aerospace standard 907
Cons
- angle performance feedback is mixed
Best For
Features
- Cobalt steel tool with increased cobalt content for cutting harder metals
- Gold oxide coating is thinner than black oxide and similar to uncoated performance
- Round shanks compatible with a wide range of toolholding systems
- Right-hand cut spiral flutes evacuate chips in counterclockwise direction to reduce clogging
- Manufactured to National Aerospace standard 907
