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Chicago-Latrobe 15-piece cobalt drill bit set in metal case, straw bronze finish

Chicago-Latrobe

Chicago-Latrobe 57852 15pc 135° Cobalt Jobber Length Drill Set

SKU CH-0QJM-PPXTV

A 15-piece cobalt drill bit set with a 135-degree point angle for heavy-duty jobber length drilling

  • Product 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.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $99.99
Pricier than about 83% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill 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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