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CHICAGO-LATROBE Aircraft Extension Drill: #1, 6" 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: #1, 6" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: #1 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406X05, MPN 11031) with a 0.2280 diameter, 6" overall length, 135° split point, and black oxide…

SKU 3G-OTH-208068

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: #1, 6" 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
11031
Type
Black Oxide HSS
Overall Lg
6"
Split Point
135°
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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #1 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406X05, MPN 11031) with a 0.2280 diameter, 6" overall length, 135° split point, and black oxide finish. It meets NAS 907 Type B specifications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #1 used for?

The CHICAGO-LATROBE Aircraft Extension Drill #1 is used for drilling precision holes in aircraft assembly and maintenance. Its extended length reaches confined spaces, while the 135° split point reduces walking on curved surfaces. The black oxide HSS construction provides heat resistance and lubricity for drilling aluminum alloys and aerospace-grade materials.

What are the specifications of the CHICAGO-LATROBE Aircraft Extension Drill #1?

The CHICAGO-LATROBE Aircraft Extension Drill #1 (MPN 11031) has a 0.2280 diameter, 6" overall length, 135° split point, and black oxide HSS finish. It meets NAS 907 Type B specifications. This NAS-spec drill bit is designed for aerospace applications requiring tight tolerances and extended reach.

Where to buy CHICAGO-LATROBE Aircraft Extension Drill #1 worldwide?

3G Electric supplies the CHICAGO-LATROBE Aircraft Extension Drill #1 worldwide. As a global industrial equipment distributor established in 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this NAS 907 Type B drill bit.

How to select the right CHICAGO-LATROBE aircraft extension drill bit?

Select the CHICAGO-LATROBE aircraft extension drill bit based on hole diameter, material thickness, and access constraints. The #1 size with 0.2280 diameter suits standard aerospace fasteners. Ensure the drill meets NAS 907 Type B specs for critical applications. For best results, match the split point angle to the material being drilled.

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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