Chicago-Latrobe
Chicago-Latrobe 44923 23/64" Cobalt Black/Gold 135° Jobber Drill Bit
A 23/64" cobalt jobber drill bit with a 135° split point and TiAlN coating for hard-metal drilling
- TypeDrill Bits
- 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.
Highlights
- 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
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
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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