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CHICAGO-LATROBE #56 NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE #56 NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit

The CHICAGO-LATROBE Aircraft Extension Drill: #56 is a NAS-Spec high-speed steel aircraft-extension drill bit, model 11086 (MPN 11086). It features a 0.0465-inch diameter, 6-inch overall length, 135° point, and black…

SKU 3G-OTH-207914

Brand
CHICAGO-LATROBE
Item
#56 NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit
Part Number
11086
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
Available to Order
Also known as:11086CHICAGO-LATROBE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11086
Type
Black Oxide HSS
Overall Lg
6"
Point
135°

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #56 is a NAS-Spec high-speed steel aircraft-extension drill bit, model 11086 (MPN 11086). It features a 0.0465-inch diameter, 6-inch overall length, 135° point, and black oxide finish, conforming to NAS 907 Type B standards.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #56 used for?

This NAS-spec high-speed steel drill bit is designed for drilling in tight, hard-to-reach spaces on aircraft structures. Its 6-inch extension and 135° point allow precise hole creation in aluminum and sheet metal, meeting NAS 907 Type B standards for aerospace maintenance and manufacturing.

What are the specifications of the CHICAGO-LATROBE 11086 drill bit?

The CHICAGO-LATROBE 11086 is a #56 aircraft extension drill bit with a 0.0465-inch diameter, 6-inch overall length, 135° point, and black oxide HSS finish. It conforms to NAS 907 Type B and is part of the 11086 series, designed for aerospace applications.

Where to buy CHICAGO-LATROBE aircraft extension drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE aircraft extension drill bits worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine NAS-spec tooling like the 11086 (MPN 11086) to your facility, regardless of location.

How to select the right aircraft extension drill bit for tight spaces?

Choose a drill bit with a length that reaches your work area without excessive overhang. For aerospace work, NAS 907 Type B bits like the CHICAGO-LATROBE #56 offer a 135° split point to reduce walking and a black oxide finish for chip evacuation. Match diameter to your fastener or hole requirement.

Used in

Common applications for CHICAGO-LATROBE
Aerospace manufacturing — Chicago-Latrobe NAS-spec jobber-length drill bits (e.g., MPN 42631) for drilling holes in airframe components.
Metal fabrication — Chicago-Latrobe single-flute countersinks (e.g., MPN 56774) for deburring and chamfering holes in steel plates.
Machine shop — Chicago-Latrobe 82° countersinks (e.g., MPN 56738) for creating flush-mount recesses for flat-head screws in assemblies.
Maintenance and repair — Chicago-Latrobe 90° countersinks (e.g., MPN 56760) for chamfering holes and removing burrs on industrial equipment.
Automotive production — Chicago-Latrobe HSS drill bits for holemaking in engine blocks and chassis components.
General machining — Chicago-Latrobe countersinks in various body diameters for chamfering and deburring in job shops.
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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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Black oxide high-speed steel aircraft-extension drill bit with 135° split point and 12" overall length. Conforms to NAS 907 Type B. Used for drilling deep holes in aircraft structures and other tight-access industrial applications
This NAS 907 Type B aircraft-extension drill bit is made from high-speed steel with a black oxide finish. It features a 135° split point for reduced walking on curved surfaces and an extended 6-inch overall length for reaching confined areas. Suitable for drilling in tough alloys in aerospace and precision metalworking applications
CHICAGO-LATROBE
This NAS 907 Type B aircraft-extension drill bit is made from high-speed steel with a black oxide finish. It features a 135° split point for reduced walking on curved surfaces and an extended 6-inch overall length for reaching confined areas. Suitable for drilling in tough alloys in aerospace and precision metalworking applications

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