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
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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.
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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.















