Cle-Line
Cle-Line C18045 R .3390 135° split-point drill bit
135° split-point high-speed steel jobber drill bit in size R with .3390 decimal equivalent and black oxide finish
- TypeDrill Bits
- MaterialHAWA
- 135° split point starts on contact without wandering
- High-speed steel construction resists heat during heavy drilling
- Black oxide finish reduces friction and extends bit life
- Decimal size .3390 matches precise letter R specifications
Cle-Line C18045 R 135° split-point drill bit
The Cle-Line C18045 R is a jobber-length drill bit made from high-speed steel with a black-oxide finish. Its 135-degree split point reduces walking and starts holes cleanly in metal. The bit suits machinists, maintenance technicians and hobbyists who need accurate drilling in steel and alloy.
Fits standard drill chucks
The straight shank seats in any drill press or handheld chuck without adapters. The split-point geometry cuts on contact so a separate centre drill is not required. The .3390 decimal diameter covers letter-size R clearance holes for tapping or fastener work.
Highlights
- 135° split point starts on contact without wandering
- High-speed steel construction resists heat during heavy drilling
- Black oxide finish reduces friction and extends bit life
- Decimal size .3390 matches precise letter R specifications
Specifications
| Brand | CLE-LINE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
At what point angle does the split-point geometry start to wander in harder steel?
The 135-degree split point is designed to self-centre and reduce walking, so it holds its line in tougher alloys without a centre punch.
How much heat builds up in the flutes during a long run of holes?
High-speed steel with black-oxide finish dissipates heat steadily, letting the bit stay sharp through extended drilling sessions.
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