Chicago-Latrobe
Chicago-Latrobe 54070 25/64 in 135 Degree Cobalt Jobber Drill Bit
A 25/64 in cobalt jobber drill bit with a 135 degree split point for hard-metal drilling
- TypeDrill Bits
- MaterialHAWA
- 25/64 inch size fits precise fractional drilling needs
- 135 degree split point starts on contact without wandering
- Cobalt construction resists heat during heavy-duty drilling
- TiN coating reduces friction for longer cutting life
- Jobber length provides standard reach for general applications
Chicago-Latrobe 54070 25/64 in Jobber Drill Bit
This Chicago-Latrobe 54070 is a 25/64 inch jobber length drill bit built for heavy-duty metal drilling. The 135 degree split point reduces walking and starts holes cleanly in tough alloys. It suits professional mechanics and fabricators who need reliable performance in steel and stainless steel.
Check chuck capacity and material compatibility
Verify that your drill chuck accepts a 25/64 inch shank before ordering. The .3906 decimal equivalent helps confirm the exact size required for your application. Ensure the workpiece material suits cobalt tooling with a 135 degree point angle for optimal cutting action.
Cobalt construction with TiN coating extends tool
The HAWA cobalt base material resists heat and wear during high-speed drilling operations. A titanium nitride coating further reduces friction and improves chip evacuation. These features combine to deliver longer service intervals compared to standard high-speed steel bits in demanding production environments.
Highlights
- 25/64 inch size fits precise fractional drilling needs
- 135 degree split point starts on contact without wandering
- Cobalt construction resists heat during heavy-duty drilling
- TiN coating reduces friction for longer cutting life
- Jobber length provides standard reach for general applications
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
Does the 54070 drill bit come alone or in a set and must I supply my own cutting fluid?
The 54070 is a single 25/64 in cobalt jobber bit with a 135 degree split point and TiN coating; it has no coolant holes so cutting fluid is applied externally if needed.
When would I choose the 25/64 in size over another diameter?
Choose the 25/64 in (0.3906 decimal) when the hole must match that exact fractional inch specification for the fastener or pilot you are drilling.
How does the 135 degree split point change drilling in a hand-held or press machine?
The 135 degree split point self-centres on contact, reduces walk and lowers thrust force, giving cleaner starts in hard materials on both hand drills and drill presses.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
