Cle-Line
Cle-Line C18042 O 135° jobber drill bit .3160 HSS black oxide
High-speed steel jobber drill bit with a 135-degree split point for accurate starts and black-oxide finish for corrosion resistance
- TypeDrill Bits
- MaterialHAWA
- 135° split point reduces walking on hard surfaces
- High-speed steel construction resists heat during prolonged drilling
- Black oxide finish lowers friction and extends bit life
- Decimal size .3160 matches letter O for precise hole diameter
Cle-Line C18042 O 135° Jobber Drill Bit
This Cle-Line jobber drill bit is manufactured from high speed steel with a black oxide finish. The split point design helps reduce walking and improves starting accuracy on metal surfaces. It suits general-purpose drilling tasks in workshop and maintenance environments.
Practical limits of 135° split point geometry
The 135 degree point angle with split point is optimised for harder materials such as stainless steel and alloy steels. In softer metals like aluminium or brass the aggressive angle can grab and cause chatter. The jobber length flute limits effective drilling depth to the length of the flutes themselves. It is not a coolant-through tool so deep holes in tough alloys may require frequent withdrawal to clear chips and manage heat. Buyers needing extended reach or internal coolant delivery should consider alternative bit styles.
Highlights
- 135° split point reduces walking on hard surfaces
- High-speed steel construction resists heat during prolonged drilling
- Black oxide finish lowers friction and extends bit life
- Decimal size .3160 matches letter O for precise hole diameter
Specifications
| Brand | CLE-LINE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Which drill bit size should I select for a .3160 diameter hole?
Choose the Cle-Line C18042 marked with letter O, which has a decimal equivalent of .3160.
How does the 135 degree split point perform when drilling into metal?
The 135 degree split point centres itself on contact and reduces walking, letting the high-speed steel bit cut cleanly into metal without a centre punch.
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