Chicago-Latrobe
Chicago-Latrobe 57852 15pc 135° Cobalt Jobber Length Drill Set
A 15-piece cobalt drill bit set with a 135-degree point angle for heavy-duty jobber length drilling
- TypeDrill Bits
- 15-piece cobalt set covers a wide range of drilling tasks
- 135-degree split point reduces walking and starts holes cleanly
- Cobalt steel withstands high heat when drilling hard metals
- Straw bronze finish adds lubricity and resists corrosion
- Jobber length gives standard reach for general-purpose work
Chicago-Latrobe 15-Piece Cobalt Drill Set
This Chicago-Latrobe 57852 set contains 15 jobber-length drill bits made from machining cobalt with a straw/bronze finish. The bits feature a 135-degree point angle designed for heavy-duty drilling tasks. It is suited for mechanics and fabricators who need a complete set of cobalt bits for general workshop use.
Suited for metalworking and maintenance jobs
These bits are built for drilling hard metals such as stainless steel and high-strength alloys where cobalt material offers better heat and wear resistance than standard high-speed steel. Buyers who need a wider range of diameters beyond the 15 pieces provided, or who require specialised coatings for extreme production volumes, should look at other options.
135-degree split-point geometry
The 135-degree point angle is the critical specification that determines performance in tough materials; it enables self-centring starts and reduces thrust load compared to shallower angles. If your application demands a different point geometry or a non-cobalt substrate, this set will not match the requirement.
Highlights
- 15-piece cobalt set covers a wide range of drilling tasks
- 135-degree split point reduces walking and starts holes cleanly
- Cobalt steel withstands high heat when drilling hard metals
- Straw bronze finish adds lubricity and resists corrosion
- Jobber length gives standard reach for general-purpose work
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
Will these 135° cobalt bits work in my older corded drill?
Yes, the jobber length shank fits standard three-jaw chucks found on most older corded drills, and the 135° split point reduces walking on hard metal.
How can I verify the 135° split point is performing correctly after first use?
Drill a test hole in mild steel; the bit should self-centre without a centre punch and produce short, curly chips rather than long ribbons.
What does the 15-piece set include and is a case supplied?
The set contains 15 cobalt jobber length drill bits with a straw/bronze finish; no case or additional accessories are mentioned.
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