Drill America 27/64" cobalt drill bit set (6) D/ACO
Cobalt steel drill bits designed for harder metals with round shanks for versatile toolholding. Features a thinner gold oxide surface and counterclockwise chip evacuation for smoother cuts; manufactured to National Aerospace standard 907. Customer insight notes high quality, durability, and sharp cuts
Highlights
- cobalt for hard metals
- round shank versatility
- aerospace standard 907
Pros
- cobalt steel for harder metals
- round shanks for versatile toolholding
- thin gold oxide surface treatment
- includes 6-pack value
- good durability and sharp cuts per customers
Cons
- angle feedback is mixed
Best For
Features
- Cobalt steel composition enhances cutting performance on hard metals like stainless Grade nickel alloys
- Gold oxide coating is thinner than typical coatings, similar performance to uncoated tools
- Round shank design accommodates a variety of toolholding systems
- Right-hand cut spiral flutes evacuate chips upward to reduce clogging during use
- Manufactured to National Aerospace standard 907
