D/ACO31/64P6 31/64" cobalt drill bit set (6) - D/ACO Series
Cobalt steel drill bits with a thin gold oxide coating for cutting harder metals. Round shanks compatible with various toolholding systems. Customers note sharp cuts, durability, and long life
Highlights
- coarse cobalt alloy for harder metals
- thin gold oxide coating differences
- pack of 6 bits
Pros
- cobalt steel for harder-metal cutting
- round shanks for versatile toolholding
- sharp cuts and durability
- long life relative to some competitors
- contains multiple bits in a pack
Cons
- mixed feedback on angle aspect
Best For
Features
- Cobalt steel tooling for improved performance with harder metals like stainless steel
- Gold oxide surface treatment distinguishing from black oxide, similar performance to uncoated tools
- Round shank compatible with a wide range of toolholding systems
- Spiral fluted design evacuates chips when run counterclockwise (right-hand cut) to reduce clogging
- Manufactured to National Aerospace standard 907
