N Cobalt Drill Bit Pack (DWDCO Series) by Drill America
Cobalt steel drill bits designed for harder metals with high durability. Round shanks suit various toolholding systems; compatible with counterclockwise use to help chip evacuation. Customer note: stays sharp through galvanized steel and high-carbon steel tasks
Highlights
- cobalt steel for harder metals
- round shank versatility
- designed for efficient chip evacuation
Pros
- cobalt steel construction for harder metals
- round shank for versatile toolholding
- good durability and sharpness per customers
- thin gold oxide surface treatment indicates cobalt tool design
Cons
- mixed feedback on geometry
- some users found sizing not as described
Best For
Features
- Cobalt steel tools offer enhanced performance when cutting harder metals like stainless steel or nickel alloys
- Gold oxide coating is a thinner surface treatment than black oxide and similar in performance to uncoated tools
- Round shanks compatibility with a wide range of toolholding systems
- Right-hand cut spiral fluted design aids chip evacuation to reduce clogging
- Manufactured to National Aerospace standard 907
