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Cobalt jobber drill bit, gold TiN finish, 135-degree split point

Chicago-Latrobe

Chicago-Latrobe 54125 135 Degree Cobalt Jobber Drill Bit

SKU CH-19WA-34YHH

A 135-degree split-point cobalt jobber drill bit with TiN coating for reduced walking in hard materials

  • TypeDrill Bits
  • MaterialHAWA
  • 135-degree split point starts drilling on contact
  • Cobalt steel with TiN coating resists heat and wear
  • Jobber length handles standard drilling depths
  • .4130-inch Z-size bit fits precise hole requirements
  • Heavy-duty construction suits demanding workshop tasks

Chicago-Latrobe 54125 Cobalt Drill Bit

The Chicago-Latrobe 54125 is a jobber-length drill bit manufactured from cobalt steel with a TiN coating. It features a 135-degree split point and a decimal equivalent of .4130, corresponding to letter size Z. The design is intended for drilling hard metals in maintenance and fabrication tasks.

Suited for hard-metal drilling.

This bit suits machinists and technicians who need a durable, non-coolant-through tool for stainless steel, titanium or high-temperature alloys. The split point aids self-centering on tough surfaces. It is not for operations that require through-spindle coolant delivery or for buyers who need multiple coolant holes for chip evacuation.

135-degree split point decides the application

The 135-degree split point geometry determines whether this bit matches the material and rigidity of the job. It is the single specification that decides if this is the right part for the intended drilling conditions.

Highlights

  • 135-degree split point starts drilling on contact
  • Cobalt steel with TiN coating resists heat and wear
  • Jobber length handles standard drilling depths
  • .4130-inch Z-size bit fits precise hole requirements
  • Heavy-duty construction suits demanding workshop tasks

Specifications

BrandCHICAGO-LATROBE
TypeDrill Bits
MaterialHAWA

Questions about this item

What does the 135-degree point angle do for me when I start drilling?

The 135-degree split point centres itself on contact, reducing wander and lowering the thrust needed to penetrate hard metals such as stainless steel.

How does the TiN coating on this cobalt bit affect wear and heat?

The titanium nitride coating increases surface hardness and reduces friction, letting the bit run cooler and stay sharp longer in abrasive alloys.

Will the 0.4130-inch diameter shank fit my standard drill chuck?

The shank diameter matches the drill size, so it fits any three-jaw chuck that accepts up to 0.4130 inch.

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