Chicago-Latrobe
Chicago-Latrobe 57712 21-piece 118-degree jobber drill bit set
21-piece jobber-length drill bit set with 118-degree points made from high-speed steel and finished in black oxide for general-purpose drilling
- TypeDrill Bits
- 21 drill bits cover a wide range of common hole sizes
- 118-degree point angle centres quickly without a pilot hole
- High-speed steel construction resists heat during extended drilling
- Black oxide finish reduces friction and resists corrosion
- Model 57712 identifies the exact set for reordering
What the set contains
This Chicago-Latrobe jobber drill bit set supplies 21 high-speed steel bits with a 118-degree point angle. The black-oxide finish helps resist corrosion during general-purpose drilling in metal, wood and plastic. It suits maintenance technicians, fabricators and DIY users who need a ready range of diameters in one package.
Build quality and everyday handling
Bits are manufactured from machining-grade high-speed steel and coated with a black-oxide surface treatment. The jobber-length geometry fits standard drill chucks and quick-change adapters without extra sleeves. The indexed case keeps each size organised and protects cutting edges when the kit is transported between job sites.
Heat, noise and power in use
High-speed steel construction dissipates heat evenly when run at recommended speeds, reducing the risk of temper loss during prolonged cuts. The 118-degree point centres quickly, lowering thrust force and motor load on both corded and cordless drills. Consistent chip evacuation keeps vibration low and extends bit life under normal workshop conditions.
Highlights
- 21 drill bits cover a wide range of common hole sizes
- 118-degree point angle centres quickly without a pilot hole
- High-speed steel construction resists heat during extended drilling
- Black oxide finish reduces friction and resists corrosion
- Model 57712 identifies the exact set for reordering
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
What does the 118-degree point angle mean for drilling?
The 118-degree point angle is a general-purpose geometry that centres well on flat surfaces and works across common materials such as mild steel, aluminium and plastic.
What shank style do these jobber-length bits use for mounting?
Each bit has a straight round shank sized to its drill diameter, so it fits standard three-jaw drill chucks without adapters.
How should I seat the bits in the chuck to avoid run-out?
Open the chuck fully, insert the bit until the shank bottoms out, then tighten each jaw evenly by hand before giving a final firm turn with the chuck key.
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