Chicago-Latrobe
Chicago-Latrobe 54069 135 Degree Cobalt Jobber Drill Bit
A 1/2 inch cobalt jobber drill bit with a 135 degree split point for heavy-duty drilling
- TypeDrill Bits
- MaterialHAWA
- 135-degree split point starts on contact without wandering
- Cobalt steel with TiN coating resists heat and wear
- 1/2-inch jobber length reaches deep holes in tough metals
- Decimal size .5000 matches precise fractional specifications
- Heavy-duty construction handles high-torque drilling in stainless and alloy steels
Chicago-Latrobe 54069 Cobalt Jobber Bit
This Chicago-Latrobe 54069 drill bit is built for heavy-duty metalwork where standard high-speed steel wears too quickly. The cobalt alloy body resists heat and abrasion, while the 135-degree split point starts on contact and reduces wandering. It suits maintenance crews, fabricators and machinists who need reliable hole-making in tough alloys.
135-degree split point limits walk and heat
The 135-degree point angle is optimised for harder materials such as stainless steel and titanium, but it demands rigid setups and steady feed pressure. Hand-held drilling in thin sheet can cause chatter if the workpiece is not clamped. The split point geometry helps centring, yet it cannot compensate for excessive run-out or insufficient coolant in deep holes.
Half-inch capacity with TiN coating headroom
At 0.5000 inch diameter this bit handles the upper end of common jobber-length work, clearing chips through standard flutes without internal coolant passages. The TiN coating adds wear resistance for repetitive production runs, though the lack of through-coolant holes limits depth in high-temperature alloys. Users needing deeper holes or larger diameters will need a different tool style.
Highlights
- 135-degree split point starts on contact without wandering
- Cobalt steel with TiN coating resists heat and wear
- 1/2-inch jobber length reaches deep holes in tough metals
- Decimal size .5000 matches precise fractional specifications
- Heavy-duty construction handles high-torque drilling in stainless and alloy steels
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Should I choose the 1/2 inch cobalt jobber bit or look for a different size?
The 1/2 inch size matches the .5000 decimal equivalent shown; select it when your application calls for that exact diameter.
What does the 135 degree point angle mean once the bit is in the drill?
A 135 degree split point centers itself quickly and reduces wandering on hard materials such as stainless steel.
How does the cobalt construction with TiN coating affect drilling performance?
Cobalt steel resists heat buildup while the TiN coating lowers friction, letting the bit stay sharp longer in tough alloys.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
