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Cylindrical cobalt drill bit with black and gold TiAlN coating, split point tip, jobber length

Chicago-Latrobe

Chicago-Latrobe 44923 23/64" Cobalt Black/Gold 135° Jobber Drill Bit

SKU CH-JHPT-C6WWY

A 23/64" cobalt jobber drill bit with a 135° split point and TiAlN coating for hard-metal drilling

  • Product typeDrill Bits
  • Main materialHAWA
  • Cobalt construction withstands high heat in hard metals
  • 135° split point starts on contact without wandering
  • TiAlN coating reduces friction and extends cutting life
  • 23/64 inch fractional size matches common jobber specs
  • Decimal equivalent .3594 simplifies precision setup

Chicago-Latrobe 44923 Jobber Drill Bit

The Chicago-Latrobe 44923 is a cobalt jobber-length drill bit with a 135-degree split point. It is made for machinists and maintenance technicians who need reliable performance in tough alloys. The TiAlN coating adds hardness and heat resistance for extended tool life. The 23/64-inch fractional size covers a specific clearance requirement.

Straight shank fits standard chucks without adapters

The straight shank seats directly in any standard drill chuck or collet, so no special holders are required. The 135-degree split point centres the bit on contact and reduces walking on hard surfaces. Cobalt construction resists chipping, but excessive feed pressure or insufficient coolant can still fracture the cutting edges. Steady pressure and cutting fluid prevent premature wear.

Verify fractional size

Confirm the 23/64-inch diameter matches the hole specification for your fastener or reaming operation. The bit is designed for ferrous metals such as stainless steel, titanium and high-strength alloys rather than soft aluminium or plastics. Ensure your drill delivers enough torque at low speed for the .3594-inch decimal equivalent. Non-coolant-through design means external lubrication must reach the cut zone.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 70% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

How can I confirm the 135° split point is cutting correctly after I start drilling?

The 135° split point should self-centre without a pilot hole and produce short, curly chips in steel; if the bit walks or creates long ribbons, resharpen or replace it.

Does the 44923 jobber bit come alone or in a set, and do I need a separate holder?

The 44923 is sold as a single 23/64" cobalt bit with TiAlN coating; it fits any standard 3-jaw chuck so no extra holder is required.

When should I choose the 23/64" (.3594) cobalt jobber over other diameters?

Select the 23/64" size when the hole must be exactly .3594" diameter; step to the next fractional size up or down if the print calls for a different clearance or tap drill.

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