Cleveland
Cleveland C15086 5/8" Cobalt 135° Jobber Drill Bit
A 5/8-inch cobalt steel jobber drill bit with a 135-degree point angle and TiAlN finish for straight-shank drilling
- Cobalt steel resists heat during heavy drilling
- 135° split point starts on contact without wandering
- TiAlN coating extends edge life in tough alloys
- Straight shank fits standard drill chucks securely
- .6250" diameter matches 5/8" fractional specifications
5/8" Cobalt Jobber Bit
The Cleveland C15086 is a fractional-inch drill bit manufactured from cobalt steel for machining hard materials. Its 135-degree split point reduces walking and lowers thrust requirements. A TiAlN coating increases surface hardness and heat resistance for extended tool life.
Replaces standard high-speed steel bits
Cobalt construction withstands higher cutting temperatures when drilling stainless steel, titanium or high-temperature alloys. The upgrade is worth it when standard bits dull quickly or fracture in abrasive or work-hardening metals.
Handles .6250 diameter holes in tough alloys
The straight shank fits standard drill chucks and collets for rigid setups. Jobber length provides standard reach for through-holes and moderate-depth drilling. Not suited for deep-hole applications requiring extra-length or coolant-fed tooling.
Highlights
- Cobalt steel resists heat during heavy drilling
- 135° split point starts on contact without wandering
- TiAlN coating extends edge life in tough alloys
- Straight shank fits standard drill chucks securely
- .6250" diameter matches 5/8" fractional specifications
Specifications
| Brand | CLEVELAND |
|---|
Questions about this item
Will the 5/8" straight shank fit my drill chuck?
The straight shank fits standard three-jaw chucks that accept 5/8" or larger capacity; verify your chuck maximum before use.
How do I start the 135° split-point tip without it wandering?
Apply steady pressure at the marked centre; the 135° split-point is self-centring, so avoid excessive force that can dull the cobalt edges.
When should I replace the TiAlN-coated cobalt bit?
Replace when the cutting lips show visible rounding or the gold TiAlN coating has worn to bare steel, indicating reduced heat resistance.
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