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CHICAGO-LATROBE Aircraft Extension Drill: #43, 12" Overall Lg, 135° Split Point - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE Aircraft Extension Drill: #43, 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: #43 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406Y37, MPN 11167). It features a 0.0890-inch diameter, 12-inch overall length, 135° split point…

SKU 3G-OTH-207947

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: #43, 12" Overall Lg, 135° Split Point
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11167
Type
Black Oxide HSS
Overall Lg
12"
Split Point
135°
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #43 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406Y37, MPN 11167). It features a 0.0890-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS construction, conforming to NAS 907 Type B.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #43 used for?

This NAS-spec high-speed steel drill bit is designed for deep-hole drilling in aircraft assembly and maintenance. Its 12-inch overall length and 135° split point allow precise, chatter-free drilling in tight spaces, while the black oxide finish reduces friction and extends tool life.

What are the specifications of the CHICAGO-LATROBE 11167 drill bit?

The CHICAGO-LATROBE 11167 is a #43 aircraft extension drill bit with a 0.0890-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS construction. It conforms to NAS 907 Type B, making it suitable for aerospace applications requiring controlled hole depth.

Where to buy CHICAGO-LATROBE aircraft extension drills worldwide?

3G Electric supplies CHICAGO-LATROBE aircraft extension drills like the #43 (MPN 11167) to customers worldwide. We handle full logistics, customs clearance, and delivery, ensuring you receive genuine NAS-spec tooling for your aerospace or industrial operations.

How to select the right aircraft extension drill bit for deep-hole drilling?

Choose a drill bit that matches your hole diameter, depth, and material. For aerospace work, NAS 907 Type B bits like the CHICAGO-LATROBE #43 offer a 135° split point for self-centering and reduced thrust. Ensure overall length exceeds your drilling depth, and use proper cutting fluid for HSS tools.

Used in

Common applications for CHICAGO-LATROBE
Aerospace assembly — Chicago-Latrobe NAS 907 Type B aircraft-extension drill bits for drilling fastener holes in aluminum and titanium skins.
Metal fabrication — Chicago-Latrobe reduced-shank drill bit sets for enlarging holes in structural steel using magnetic drill presses.
Maintenance repair — Chicago-Latrobe left-hand cobalt jobber-length drill bits for removing broken bolts in machinery.
Tool and die making — Chicago-Latrobe jobber-length drill bit sets with 135° split point for precision hole drilling in hardened steels.
Automotive repair — Chicago-Latrobe spiral-flute screw extractors for removing seized fasteners in engine blocks or exhaust systems.
General manufacturing — Chicago-Latrobe HSS jobber-length drill bits for production drilling in mild steel and cast iron.

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE nas-spec high-speed steel aircraft-extension drill bits. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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