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Chicago-Latrobe 42801 13-piece 135-degree TiAlN-coated high-speed steel drill bit set in case

Chicago-Latrobe

Chicago-Latrobe 42801 13-piece 135° drill bit set

SKU CH-3A7P-J78AA

A 13-piece jobber-length drill bit set with 135-degree points made from high-speed steel and TiAlN finish

  • Product typeDrill Bits
  • 13-piece set covers common drilling tasks
  • 135° split point reduces walking on hard materials
  • High-speed steel construction resists heat during extended use
  • TiAlN coating increases surface hardness and tool life
  • Jobber length suits standard drill chucks and depths

Chicago-Latrobe 42801 13-piece set

The Chicago-Latrobe 42801 set provides 13 jobber length drill bits manufactured from high speed steel. Each bit features a 135 degree point angle and a TiAlN finish for extended wear resistance. The set is supplied new and covers a range of standard drilling tasks.

Suited for general workshop drilling

These bits suit mechanics and fabricators drilling into steel and other ferrous metals where the 135 degree point reduces walking. The high speed steel construction is not intended for hardened alloys or continuous high-volume production runs. Buyers needing cobalt or carbide substrates for extreme hardness should look at something else.

135 degree point angle with TiAlN coating

The 135 degree split point geometry centres the bit quickly without a centre punch. The TiAlN coating increases surface hardness and heat resistance compared with uncoated high speed steel. This specification determines whether the set matches the material and tool life requirements of the job.

How it compares

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

Price $71.99
Pricier than about 76% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits

Questions about this item

Which material limits how long the 135° bits stay sharp under sustained drilling?

High-speed steel construction resists wear during extended use, while the TiAlN coating reduces friction and heat buildup that dulls cutting edges.

How much heat and noise do the 13 bits generate during all-day drilling?

TiAlN finish lowers cutting temperatures compared to uncoated steel, and jobber-length design maintains rigidity to minimise vibration and noise.

What chuck size must my drill already have to accept these 13 jobber-length bits?

Standard jobber shanks fit common 13 mm (1/2 in) drill chucks, so any drill with that capacity will drive the full set.

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