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

CHICAGO-LATROBE Aircraft Extension Drill: 25/64", 6" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: 25/64" is a NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 406W96). It features a 0.3906-inch diameter, 6" overall length, 135° split point, and black oxide…

SKU 3G-OTH-207874

Brand

CHICAGO-LATROBE

Item

Aircraft Extension Drill: 25/64", 6" Overall Lg, 135° Split Point

Technical Specifications

CHICAGO-LATROBE

Manufacturer Part Number

11023

Type

Black Oxide HSS 

Overall Lg

6"

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 used for?

This drill is designed for aerospace and industrial applications requiring deep-hole drilling in hard metals. Its 6" overall length and 135° split point reduce walking and improve chip evacuation, making it ideal for aircraft maintenance and fabrication tasks.

What are the specifications of the CHICAGO-LATROBE 25/64" Aircraft Extension Drill?

This NAS 907 Type B drill has a 0.3906-inch diameter, 6" overall length, 135° split point, and black oxide high-speed steel (HSS) finish. The manufacturer part number is 11023, and it meets NAS-spec requirements for aerospace drilling.

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 location. Contact us to source this NAS 907 Type B drill for your aerospace operations.

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

Select based on hole diameter and depth requirements. This 25/64" drill with 6" length suits deep holes in aerospace alloys. The 135° split point aids self-centering. For NAS 907 compliance, verify the drill meets Type B specs as this CHICAGO-LATROBE model does.

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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