Chicago-Latrobe
Chicago-Latrobe 11162 #38 135° split-point aircraft extension drill
Drills wire-gauge #38 holes to 1-7/16 in depth with a 135° split point in high-speed steel
- Precision starts instantly with 135° split-point geometry
- #38 wire gauge suits fine-hole aircraft work
- High-speed steel with black oxide resists wear
- 1-7/16 in drilling depth reaches deeper
- 28° helix clears chips in tough alloys
Chicago-Latrobe 11162 Aircraft Extension Drill
The Chicago-Latrobe 11162 is a NAS-type aircraft extension drill manufactured from high-speed steel with a black oxide finish. It features a 135-degree split point designed for self-centering and reduced thrust during operation. This tool suits aviation maintenance technicians and metalworkers requiring extended reach in deep or confined holes.
Verify drill bit size and point angle compatibility
Before ordering, confirm that your application requires a #38 wire-gauge drill bit with a 135-degree point angle. Check that the 28-degree helix angle suits the material grade and chip evacuation needs for your specific machining task. Ensure the shank fits your drill chuck or collet system without requiring an adapter.
Black oxide finish and split point improve drilling
The black oxide surface treatment enhances corrosion resistance and helps retain cutting fluid during high-performance machining. The split-point geometry eliminates the need for centre punching and minimises walk on curved or hard surfaces. These features combine to extend tool life and improve hole accuracy at maximum drilling depths.
Highlights
- Precision starts instantly with 135° split-point geometry
- #38 wire gauge suits fine-hole aircraft work
- High-speed steel with black oxide resists wear
- 1-7/16 in drilling depth reaches deeper
- 28° helix clears chips in tough alloys
Specifications
| Brand | CHICAGO-LATROBE |
|---|
Questions about this item
Does the Chicago-Latrobe 11162 #38 drill bit come as a single piece or a set, and do I need a special chuck?
The 11162 is sold as one #38 bit with a 135° split point and black-oxide finish; it fits any standard drill chuck that accepts its shank diameter, so no special chuck is required.
When should I pick the #38 size instead of another diameter?
Choose #38 when the job calls for that exact wire-gauge diameter; the 135° split point and 28° helix make it suited for aircraft-grade materials and deep holes up to 1 7/16 in at 4xD.
What does the 135° split-point spec mean once the bit is in the drill?
The 135° split point centres itself on contact, reduces thrust, and prevents walking on hard metals, while the black-oxide high-speed steel resists heat during deep 4xD drilling.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
