Chicago-Latrobe
Chicago-Latrobe 44930 15/32" Cobalt Drill Bit 135° Split Point TiAlN
15/32 inch cobalt jobber drill bit with 135° split point and TiAlN coating for hard metals
- TypeDrill Bits
- MaterialHAWA
- Cobalt alloy resists heat and wear during drilling
- 135° split point starts holes cleanly without wandering
- TiAlN coating reduces friction for longer edge life
- Jobber length gives standard reach for general use
- 15/32 inch diameter matches common fractional sizing
Cobalt Jobber Drill Bit
The Chicago-Latrobe 44930 is a 15/32 inch cobalt drill bit built for jobber-length drilling tasks. Its 135-degree split-point geometry reduces walking and starts holes cleanly in metal workpieces. A TiAlN coating adds surface hardness and heat resistance for longer tool life. The bit suits maintenance, fabrication and general workshop use.
Upgrade from standard high-speed steel
Cobalt alloy withstands higher drilling temperatures than conventional high-speed steel bits, keeping edges sharp in tough alloys and stainless steel. The split point eliminates the need for centre punching in most materials, saving setup time. The TiAlN layer further extends intervals between resharpening. The jump pays off when drilling work-hardening metals or running repeated holes in production.
For machinists and maintenance teams
This bit fits machinists who need reliable performance in ferrous metals and high-temperature alloys without coolant-through capability. Shops drilling deep holes requiring internal coolant delivery should select a coolant-through design instead. Users working primarily in wood, plastic or soft non-ferrous metals will find standard bits more economical.
Highlights
- Cobalt alloy resists heat and wear during drilling
- 135° split point starts holes cleanly without wandering
- TiAlN coating reduces friction for longer edge life
- Jobber length gives standard reach for general use
- 15/32 inch diameter matches common fractional sizing
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Will the 15/32" shank fit my standard drill chuck?
Yes, the 15/32 inch diameter shank fits any three-jaw chuck that opens to at least .4688 inch, which covers virtually all 1/2" capacity drills.
How do I start the hole without the bit walking on hard steel?
The 135 degree split point is self-centring; apply firm pressure and start the drill at low RPM so the split point bites instantly instead of skating.
When should I replace this cobalt bit?
Replace it when the cutting lips show visible rounding or the gold TiAlN coating has worn away to bare cobalt, which signals the edge can no longer cut cleanly.
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