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10 mm cobalt jobber drill bit, straw bronze finish, split point

Chicago-Latrobe

Chicago-Latrobe 46488 10 mm 135° Cobalt Jobber Drill Bit

SKU CH-JVGR-6ZQQW

10 mm cobalt jobber drill bit with a 135° split point for hard-metal drilling

  • TypeDrill Bits
  • MaterialHAWA
  • 10 mm cobalt construction resists heat in tough alloys
  • 135° split point starts on contact without walking
  • Jobber length reaches deeper holes in one pass
  • Straw bronze finish signals genuine cobalt grade
  • Decimal size .3937 matches metric drawings exactly

10 mm Cobalt Jobber Drill Bit

The Chicago-Latrobe 46488 is a 10 mm cobalt jobber drill bit designed for heavy-duty metal drilling. Its 135-degree split point reduces walking and starts on contact. The straw-bronze finish identifies the cobalt alloy construction. This accessory fits standard drill chucks for professional and workshop use.

Check shank fit and material suitability

Verify that your drill chuck accepts a 10 mm straight shank before ordering. The split point geometry is optimised for hard metals such as stainless steel and high-strength alloys. The bit has no coolant holes, so external lubrication or peck drilling is required for deep holes. Ensure your application does not require through-coolant capability.

Suited for metalworkers without through-coolant

This bit suits machinists and fabricators drilling 10 mm holes in tough materials where a split point improves accuracy. It is not for operators who require internal coolant delivery for high-volume production. Buyers needing larger diameters or different point angles should look at other options. Users without a compatible chuck capacity cannot use this bit.

Highlights

  • 10 mm cobalt construction resists heat in tough alloys
  • 135° split point starts on contact without walking
  • Jobber length reaches deeper holes in one pass
  • Straw bronze finish signals genuine cobalt grade
  • Decimal size .3937 matches metric drawings exactly

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits
MaterialHAWA

Questions about this item

Does the 10 mm cobalt bit come alone or in a set?

The supplier lists a single 10 mm jobber-length drill bit with a 135° split point; no case or additional bits are mentioned.

Should I choose this 10 mm cobalt bit or a smaller size for general steel work?

The 10 mm diameter suits holes of that exact size; for smaller holes you would need a different diameter bit.

How does the 135° split point perform when drilling into hard steel?

The 135° split-point geometry reduces wandering and starts cutting immediately in tough materials such as stainless or high-carbon steel.

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