Chicago-Latrobe
Chicago-Latrobe 42800 15pc 135° Jobber Drill Bit Set
A 15-piece jobber drill bit set with 135-degree points and TiAlN-coated high-speed steel for heavy-duty drilling
- TypeDrill Bits
- 15-piece set covers common drilling tasks
- 135° split point reduces walking on hard surfaces
- High-speed steel construction resists heat during extended use
- TiAlN coating increases wear resistance and tool life
- Jobber length provides versatile reach for general applications
Chicago-Latrobe 42800 15-Piece Drill Bit Set
This Chicago-Latrobe 42800 set provides 15 jobber length drill bits made from high speed steel. The 135-degree point angle supports accurate starts on metal surfaces. A TiAlN coating adds wear resistance during heavy-duty drilling tasks. It suits maintenance and fabrication shops needing a coordinated range.
Suited for metal drilling where split-point
The high speed steel construction handles general ferrous and non-ferrous materials in a pillar drill or handheld machine. Buyers who need cobalt alloy bits for hardened steels or carbide tips for abrasive composites should look at other product lines. Sets with fewer or more pieces will not match this exact count.
135-degree split point with TiAlN coating
This single specification determines whether the set matches the application. The 135-degree angle centres quickly in steel without a centre punch. The TiAlN finish resists heat buildup better than uncoated high speed steel. If the job demands a different point angle or substrate material, this set will not fit.
Highlights
- 15-piece set covers common drilling tasks
- 135° split point reduces walking on hard surfaces
- High-speed steel construction resists heat during extended use
- TiAlN coating increases wear resistance and tool life
- Jobber length provides versatile reach for general applications
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
Questions about this item
What shank diameter does the 15-piece 135° jobber drill bit set use for chuck fit?
Each bit in the 15-piece set has a straight shank that matches its flute diameter, so it fits any standard three-jaw drill chuck that accepts the corresponding drill size.
How do I install a bit from the 42800 set without it slipping in the chuck?
Open the chuck fully, insert the bit until the shank seats against the jaws, then tighten each jaw evenly — skipping the final snug on all three jaws is the step that causes run-out.
When should I replace a TiAlN-coated high-speed steel bit from this 15-piece set?
Replace the bit when the cutting lips show visible rounding, the TiAlN coating has worn through to bare steel, or the drill starts to walk instead of self-centring at 135°.
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