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CHICAGO-LATROBE Aircraft Extension Drill: 7/16", 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: 7/16", 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill is a NAS-Spec high-speed steel aircraft-extension drill bit with a 7/16" diameter. It features a 12" overall length, a 135° split point, and a black oxide finish on HSS…

SKU 3G-OTH-207885

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: 7/16", 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
11120
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 is a NAS-Spec high-speed steel aircraft-extension drill bit with a 7/16" diameter. It features a 12" overall length, a 135° split point, and a black oxide finish on HSS, meeting NAS 907 Type B specifications (MPN 11120).

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 hard materials. Its 12" overall length and 135° split point allow precise entry and chip evacuation in tight spaces, meeting NAS 907 Type B specs for aircraft maintenance and manufacturing.

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

The drill has a 7/16" diameter, 12" overall length, 135° split point, and black oxide finish on high-speed steel. It meets NAS 907 Type B specifications (MPN 11120). The 0.4375" shank diameter ensures compatibility with standard drill chucks.

Where to buy CHICAGO-LATROBE Aircraft Extension Drill worldwide?

3G Electric supplies this CHICAGO-LATROBE drill worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver to any country.

How to select the right CHICAGO-LATROBE Aircraft Extension Drill?

Select based on hole depth and material. The 12" length suits deep aerospace holes; the 135° split point reduces walking on curved surfaces. For NAS 907 compliance, verify the drill meets Type B specs. 3G Electric can advise on sizing for your application.

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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