Chicago-Latrobe
Chicago-Latrobe 11134 #10 135° Aircraft Extension Drill
Aircraft extension drill bit sized #10 with a 135-degree split point, high-speed steel construction and black oxide finish for wire drilling up to 2 7/16 inches deep
- #10 size targets wire-gauge holes precisely
- 135° split point starts fast without wandering
- High-speed steel with black oxide resists wear
- 28° helix clears chips in deep drilling
- 4×D reach accesses confined workpieces
Chicago-Latrobe 11134 #10 Aircraft Extension Drill
This aircraft extension drill is engineered for precision drilling in aerospace and maintenance applications. The #10 wire-size bit features a 135-degree split point for accurate starts and reduced walking. High-speed steel construction with black oxide finish provides durability and wear resistance during extended use.
Installation and Common Issues
The straight-shank design fits standard drill chucks without adapters for quick tool changes. The 135-degree split point centres itself on contact, minimising the need for centre punching. Users should maintain proper feed pressure to avoid bit breakage when drilling at maximum depth capacity.
4xD Depth Constraint and Material Limits
The 4xD drilling ratio defines the practical depth limit relative to the bit diameter for stable chip evacuation. High-speed steel performs best in aluminium, mild steel and similar machinable alloys encountered in airframe work. Exceeding the recommended depth or drilling hardened materials accelerates wear and reduces hole accuracy.
Highlights
- #10 size targets wire-gauge holes precisely
- 135° split point starts fast without wandering
- High-speed steel with black oxide resists wear
- 28° helix clears chips in deep drilling
- 4×D reach accesses confined workpieces
Specifications
| Brand | CHICAGO-LATROBE |
|---|
Questions about this item
How can I verify the 135 degree split point is cutting correctly after first use?
Check that the drill produces clean holes in wire material at the 28 degree helix angle without wandering, reaching the 2 7/16 in maximum depth smoothly.
What comes in the package and what must I purchase separately?
The box contains the #10 aircraft extension drill bit made of high speed steel with black oxide finish; no additional accessories are included.
Which version of the 11134 should I choose for machining high performance work?
The 11134 model with #10 size, 135 degree split point, and 4xD drilling capability is the single version designed for high performance machining applications.
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