3/16" x 6" cobalt aircraft extension drill bit (pack of 12)
Cobalt drill bit with 3/16" diameter and 6" length, designed for tough materials. 135 split point helps prevent walking; round shanks fit various tool holders. Customers report sharp cuts and good value, with mixed durability reactions
Highlights
- split-point design for starting accuracy
- coated cobalt for hardness
- versatile shank design
Pros
- 135 split point prevents walking
- round shanks for versatile tool holding
- sharp, smooth cutting performance
- suitable for tough materials
Cons
- mixed durability feedback
Best For
Features
- Effective in drilling tough
- high tensile strength materials like stainless steel
- inconel and titanium
- 135 split point tip prevents drill from walking
- Round shanks allow use with a wide variety of tool holding systems
- Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools
- 6" overall length for drilling where extra length for reach is required.
