Chicago-Latrobe
Chicago-Latrobe 54073 15/32 in 135° Cobalt Jobber Drill Bit
15/32 inch cobalt jobber drill bit with 135-degree split point for hard-metal drilling
- TypeDrill Bits
- MaterialHAWA
- 135° split point starts holes precisely without wandering
- Cobalt steel resists heat for longer life in hard metals
- TiN coating reduces friction and extends cutting performance
- Jobber length gives versatile reach for general drilling tasks
- 15/32 in fractional size matches common fastener requirements
Chicago-Latrobe 54073 Cobalt Drill Bit
This Chicago-Latrobe 54073 drill bit is a jobber-length accessory made from cobalt with a TiN coating. It features a 135-degree split point designed for self-centering and reduced thrust. The fractional size is 15/32 in with a decimal equivalent of .4688. It suits general-purpose drilling in metal and other materials.
Suited for metalworkers needing a durable
The bit suits machinists and fabricators who want a cobalt tool with a 135-degree point for harder materials. It is not for buyers who need coolant-through capability for deep-hole drilling. It is not for users who require a different diameter or point angle for a specific application. It is not for those needing a bit with coolant holes.
15/32 in fractional size with 135-degree split point
The defining specification is the 15/32 in diameter combined with a 135-degree split-point geometry. This determines the hole size produced and the bit's ability to start accurately without a pilot hole. Verify this exact fractional size matches your requirement before purchasing. The cobalt construction and TiN coating support wear resistance.
Highlights
- 135° split point starts holes precisely without wandering
- Cobalt steel resists heat for longer life in hard metals
- TiN coating reduces friction and extends cutting performance
- Jobber length gives versatile reach for general drilling tasks
- 15/32 in fractional size matches common fastener requirements
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
What chuck size does the 15/32 in cobalt jobber bit require?
The bit has a 15/32 in diameter shank, so it needs a drill chuck that opens to at least 0.4688 in or a 1/2 in capacity chuck.
How should the 135° split point be started to avoid walking?
Use light pressure and low speed to let the split point centre itself; do not lean on the drill or the cobalt tip can chip.
When does the TiN-coated cobalt bit need replacement?
Replace it when the cutting lips show visible rounding or the split point no longer self-centres in steel.
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