Chicago-Latrobe
Chicago-Latrobe 69889 15-piece 135-degree drill bit set
Fifteen high-speed steel drill bits with 135-degree split points cover fractional sizes from 1/16 to 1/2 inch
- TypeDrill Bits
- MaterialHAWA
- 15-piece set covers common fractional sizes from 1/16 in to 1/2 in
- 135-degree split-point tip starts on contact and reduces walking
- High-speed steel with black oxide finish resists wear and corrosion
- Screw-machine length provides rigidity for portable and stationary drilling
- Model 69889 from Chicago-Latrobe built for heavy-duty production use
Chicago-Latrobe 69889 15-piece drill bit set
The Chicago-Latrobe 69889 set supplies 15 high-speed steel drill bits with a 135-degree split point. It is built for machinists and maintenance technicians who need reliable screw-machine length bits for daily metalworking tasks.
Black oxide high-speed steel construction
The bits are made from high-speed steel with a black oxide finish that resists corrosion and reduces chip welding. The 135-degree split point starts on contact and minimises wandering, so each hole begins cleanly without a centre punch.
Replaces worn fractional-inch sets
This kit replaces incomplete or dull fractional-inch collections by covering sizes from 1/16 inch through 1/2 inch in consistent increments. The jump is worth it when a shop needs a full range of screw-machine length bits ready for immediate use.
Highlights
- 15-piece set covers common fractional sizes from 1/16 in to 1/2 in
- 135-degree split-point tip starts on contact and reduces walking
- High-speed steel with black oxide finish resists wear and corrosion
- Screw-machine length provides rigidity for portable and stationary drilling
- Model 69889 from Chicago-Latrobe built for heavy-duty production use
Specifications
| Brand | CHICAGO-LATROBE |
|---|---|
| Type | Drill Bits |
| Material | HAWA |
Questions about this item
What drill-point angle does the 135-degree split-point design use for self-centring?
The set uses a 135-degree split point that centres itself on contact and reduces walking on hard materials.
What size range must my drill chuck accommodate for the largest bit in this 15-piece set?
The largest bit is 1/2 inch, so the chuck must open to at least 1/2 inch capacity.
How do I seat each high-speed steel bit so the split point engages properly?
Insert the bit fully into the chuck, tighten securely, and start drilling at low speed to let the split point bite before increasing pressure.
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