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Cobalt jobber drill bit with split point and gold TiAlN coating

Chicago-Latrobe

Chicago-Latrobe 44947 135 Degree Cobalt Jobber Drill Bit

SKU CH-P3B0-AGHCS

Cobalt jobber drill bit with 135 degree split point and TiAlN coating for hard-metal drilling

  • TypeDrill Bits
  • MaterialHAWA
  • 135-degree split point starts holes fast without wandering
  • Cobalt steel with TiAlN coating resists heat and wear
  • Jobber length gives reach for deep drilling tasks
  • Letter size C equals .2420 inch for precise fits
  • Heavy-duty construction handles tough materials reliably

What this drill bit is and who it serves

The Chicago-Latrobe 44947 is a cobalt jobber-length drill bit with a 135-degree split point and TiAlN coating. It is designed for machinists and maintenance technicians who need a durable bit for drilling hard metals such as stainless steel and high-temperature alloys.

Capacity and headroom

The bit has a decimal size of .2420 inches, corresponding to letter size C, and suits holes of that diameter in tough materials. The cobalt substrate and coating provide heat resistance for extended tool life, but the fixed diameter means it cannot produce larger or smaller holes without a different bit.

Thermals noise and power draw

Cobalt construction and the TiAlN coating reduce friction and dissipate heat during high-speed drilling, helping the bit stay cooler under load. The split-point geometry lowers thrust force, which reduces vibration and motor strain on the drill. The tool has no coolant holes, so external lubrication or peck drilling may be required for deep cuts.

Highlights

  • 135-degree split point starts holes fast without wandering
  • Cobalt steel with TiAlN coating resists heat and wear
  • Jobber length gives reach for deep drilling tasks
  • Letter size C equals .2420 inch for precise fits
  • Heavy-duty construction handles tough materials reliably

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits
MaterialHAWA

Questions about this item

Will the 135-degree split point work with my older drill press without walking?

The 135-degree split point is designed to start on contact and reduce walking, so it performs well on both newer and older drill presses or hand drills.

How can I confirm the cobalt bit is cutting correctly once installed?

A properly cutting bit produces consistent, spiral chips rather than powder, and the TiAlN coating should show even wear without blue discolouration from overheating.

Does the 44947 come with a case or just the single letter-size bit?

The 44947 is supplied as a single jobber-length drill bit; no case, index or additional accessories are included in the package.

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