CHICAGO-LATROBE Aircraft Extension Drill: 29/64", 6" Overall Lg, 135° Split Point
The CHICAGO-LATROBE Aircraft Extension Drill is a NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, model 29/64" (0.4531 inch) with a 135° split point and black oxide finish. It meets NAS 907 Type B…
SKU 3G-OTH-207887
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Product Description
The CHICAGO-LATROBE Aircraft Extension Drill is a NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit, model 29/64" (0.4531 inch) with a 135° split point and black oxide finish. It meets NAS 907 Type B specifications and has a 6" overall length (MPN 11027).
Frequently Asked Questions
What is the CHICAGO-LATROBE Aircraft Extension Drill used for?
This drill is designed for aerospace and industrial applications requiring deep-hole drilling in metal. Its 6" overall length and 135° split point reduce walking and improve chip evacuation. It meets NAS 907 Type B specifications, making it suitable for aircraft maintenance and fabrication where precision and reliability are critical.
What are the specifications of the CHICAGO-LATROBE 11027 drill?
The CHICAGO-LATROBE 11027 is a 29/64" (0.4531 inch) aircraft extension drill with a 6" overall length, 135° split point, and black oxide HSS finish. It complies with NAS 907 Type B standards. The black oxide coating provides lubricity and corrosion resistance for extended tool life in demanding materials.
Where to buy CHICAGO-LATROBE aircraft extension drills worldwide?
3G Electric supplies CHICAGO-LATROBE aircraft extension drills worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact our team to source the 11027 or other NAS-spec drill bits for your aerospace operations.
How to select the right CHICAGO-LATROBE aircraft extension drill?
Select based on hole diameter, material thickness, and required depth. The 29/64" size with 6" length suits medium-depth drilling in alloys. Ensure the drill meets NAS 907 Type B for aerospace compliance. For deeper holes, consider longer extension lengths. 3G Electric can advise on the correct CHICAGO-LATROBE model for your application.
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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.















