Chicago-Latrobe
Chicago-Latrobe 54114 135 Degree Cobalt Jobber Drill Bit
Cobalt jobber drill bit with 135-degree split point for hard materials
- TypeDrill Bits
- MaterialHAWA
- 135-degree split point starts holes without wandering
- Cobalt steel with TiN coating resists heat and wear
- Jobber length gives standard reach for general drilling
- Letter size O equals 0.3160 inch decimal equivalent
- Non-coolant-through design suits hand-held and machine use
Chicago-Latrobe 54114 Jobber Drill Bit
The Chicago-Latrobe 54114 is a cobalt jobber-length drill bit designed for heavy-duty drilling tasks. Its split-point tip and 135-degree angle provide accurate starting and reduced walking on hard materials. The TiN coating enhances wear resistance and extends tool life during repetitive use. It suits professionals and serious DIYers needing reliable performance in metalworking applications.
Verify Material Compatibility and Shank Fit
Before ordering, confirm that your workpiece material matches the capabilities of a cobalt bit with TiN coating. Ensure your drill chuck accommodates the jobber-length shank diameter for secure clamping. Check that your drilling equipment delivers sufficient torque and speed control for the intended material hardness. The bit has no coolant holes, so external lubrication may be necessary for deep holes.
Sustained Load Behaviour Without Internal Cooling
Under sustained load, the cobalt construction maintains hardness better than standard high-speed steel at elevated temperatures. The TiN coating reduces friction and heat buildup during prolonged cutting cycles. Without internal coolant channels, heat dissipates through the flute and workpiece, requiring managed feed rates to prevent overheating. Consistent pressure and periodic withdrawal help maintain cutting efficiency over long sessions.
Highlights
- 135-degree split point starts holes without wandering
- Cobalt steel with TiN coating resists heat and wear
- Jobber length gives standard reach for general drilling
- Letter size O equals 0.3160 inch decimal equivalent
- Non-coolant-through design suits hand-held and machine use
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
What is included with the Chicago-Latrobe 54114 drill bit and what must be purchased separately?
The package contains the single cobalt jobber drill bit with a 135-degree split point and TiN coating. A drill chuck or compatible power tool is required separately.
Which version of the Chicago-Latrobe 54114 should I choose for a .3160 inch hole?
This model is manufactured in letter size O with a decimal equivalent of .3160 inch, so it matches that exact diameter.
How does the 135-degree split point perform when drilling stainless steel?
The 135-degree split point centres the bit on contact, reduces walking and improves cutting efficiency in hard materials such as stainless steel.
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