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Chicago-Latrobe 57728 115-piece jobber drill set in black oxide finish

Chicago-Latrobe

Chicago-Latrobe 57728 115PC 118 Deg Jobber Drill Set 150 Steam

SKU CH-5HSS-B2PDS

115-piece jobber drill-bit set with 118-degree points in high-speed steel and black-oxide finish

  • Product typeDrill Bits
  • Main materialHAWA
  • 115-piece set covers a wide range of drilling tasks
  • 118-degree point angle centres quickly in metal and wood
  • High-speed steel construction resists wear under heavy use
  • Black oxide finish reduces friction and adds corrosion protection
  • Steam-tempered surface treatment improves edge retention

Chicago-Latrobe 115-piece Jobber Drill Set

This Chicago-Latrobe 57728 set contains 115 jobber-length drill bits designed for general-purpose drilling in metal, wood and plastic. The bits are manufactured from high-speed steel with a black oxide finish for corrosion resistance. It suits maintenance technicians, fabricators and hobbyists who need a broad range of imperial sizes in a single indexed case.

118-degree point angle and steam-treated surface

The 118-degree point angle provides reliable centring and chip evacuation in common materials without specialised tooling. High-speed steel construction handles normal drilling temperatures while the black oxide finish reduces friction and resists rust during storage and use. No coolant or forced-air cooling is required for typical hand-held or bench-drill applications.

Black oxide finish and indexed storage

The black oxide coating helps retain cutting lubricant and minimises galling on softer metals. Bits are organised in a labelled index case that protects cutting edges and allows quick size identification. The set includes no additional coatings, coatings or software; the case is the only bundled accessory.

How it compares

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

Price $277.99
Pricier than about 91% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE
Product typeDrill Bits
Size & build
Main materialHAWA

Questions about this item

How do I install the 115-piece jobber drill set and which step is often missed?

Select the correct 118-degree bit for the material, secure it fully in the chuck, and apply cutting fluid — the step many skip is checking bit concentricity before drilling.

What maintenance or replacement will the 115 black-oxide high-speed-steel bits need over time?

Resharpen the 118-degree points when they dull, wipe off chips and reapply light oil to preserve the black-oxide finish, and replace any bit that shows cracks or excessive wear.

What limit appears first when the 115-piece set is used continuously in hard steel?

Heat buildup at the 118-degree cutting edges softens the high-speed steel, so cutting speed must drop or coolant must increase to prevent premature dulling.

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