Industrial Subtype:
Screw Machine Length Drill Bits
Tooling Drill Size Equivalent:
Tooling System Of Measurement:
Manufactured By:
Drillco Cutting Tools
- 3-flats shank for reduced slippage in drill chucks
- Bronze surface treatment for high lubricity
- Cobalt drills can drill approximately 30% faster than HSS drills
- Left handed flutes and cutting edges allow for counter-clockwise drilling
- Made in USA
- Made with premium grade cobalt HSS to drill harder materials
- Self centering 135° split-point for reduced thrust requirements and minimized walking
- Shorter screw machine length adds rigidity to the drill bit to reduce breakage
Cobalt Bronze Fractional Screw Machine Length Drills