COMOWARE cobalt drill bit set 21Pcs M42 HW SSS twist jobber length 1/16"-1/2"
M42 cobalt high-speed steel drill bit set with 21 pieces and indexed storage case. Designed for hardened metals and wood/plastic; features a 135° split point for precise drilling. A customer notes good value and clean cuts out of the box
Highlights
- M42 cobalt for extended life
- precise 135° split point
- indexed storage case
Pros
- 8% cobalt HSS for extended tool life
- 135° split point for precise drilling
- gold oxide finish with round straight shanks
- produced by precision fully ground for smooth chips
- widely used for hardened materials including stainless steel
Cons
- mixed durability and edge retention reports
- case design receives mixed feedback
Best For
Features
- M42 cobalt HSS provides extended tool life and durability
- 135° split point for precise perforation and reduced walking
- Gold oxide finish with round, straight shanks for consistent drilling
- Fully ground bits ensure clear chips and smooth material removal
- Suitable for hardened metals including stainless steel, cast iron, high-temp alloys, titanium alloys, hard plastics, and wood
