Drill America cobalt heavy duty drill bit set, D/ACO
Cobalt steel drill bits designed for harder metals like stainless steel. Gold oxide surface reduces wear and links to high performance. Customers note sharpness and durable performance
Highlights
- cobalt alloy for harder metals
- gold oxide surface treatment
- round shank versatility
Pros
- cobalt steel for hard metals
- round shank compatibility
- sharpness and durability
- thin gold oxide surface
- includes variety pack
Cons
- angle feedback mixed from customers
Best For
Features
- Cobalt steel tool composition for improved performance with hard metals like stainless steel
- Thin gold oxide surface treatment with performance similar to uncoated tools
- Round shanks compatible with a wide range of toolholding systems
- Counterclockwise cutting (right-hand spiral) evacuates chips to reduce clogging
- Manufactured to National Aerospace standard 907
