CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE Aircraft Extension Drill: #3, 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: #3 is an NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406X96, MPN 11127) with a 0.2130 diameter, 12" overall length, 135° split point, and black oxide…

SKU 3G-OTH-208063

Brand

CHICAGO-LATROBE

Item

Aircraft Extension Drill: #3, 12" Overall Lg, 135° Split Point

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

11127

Type

Black Oxide HSS 

Overall Lg

12"

Split Point

135° 

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Technical Documents

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CHICAGO-LATROBE Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #3 used for?

The CHICAGO-LATROBE Aircraft Extension Drill #3 is used for drilling precision holes in aircraft assembly and maintenance. Its 12" overall length and 135° split point allow access to tight spaces in airframes and panels. The black oxide HSS construction and NAS 907 Type B compliance make it suitable for aerospace-grade materials.

What are the specifications of the CHICAGO-LATROBE Aircraft Extension Drill #3?

The CHICAGO-LATROBE Aircraft Extension Drill #3 (MPN 11127) has a 0.2130" diameter, 12" overall length, 135° split point, and black oxide HSS finish. It conforms to NAS 907 Type B specification. The #3 wire-gauge size is designed for precision drilling in aerospace applications.

Where to buy the CHICAGO-LATROBE Aircraft Extension Drill #3 worldwide?

3G Electric supplies the CHICAGO-LATROBE Aircraft Extension Drill #3 worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source and deliver this NAS-spec drill bit to any country.

How to select the correct CHICAGO-LATROBE Aircraft Extension Drill #3?

Select the CHICAGO-LATROBE Aircraft Extension Drill #3 when you need a 0.2130" diameter hole with NAS 907 Type B compliance. The 12" length suits deep or obstructed drilling in aircraft structures. The 135° split point reduces walking on curved surfaces. Always match the drill to the material hardness and hole tolerance required.

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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