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CHICAGO-LATROBE Aircraft Extension Drill: #40, 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: #40, 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill: #40 is a NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 11164, MPN 11164). It features a 0.0980-inch diameter, 12-inch overall length, 135° split point, and…

SKU 3G-OTH-207955

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: #40, 12" Overall Lg, 135° Split Point
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11164
Type
Black Oxide HSS
Overall Lg
12"
Split Point
135°

Technical Documents

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CHICAGO-LATROBE Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CHICAGO-LATROBE Aircraft Extension Drill: #40 is a NAS-Spec High-Speed Steel Aircraft-Extension Drill Bit (SKU 11164, MPN 11164). It features a 0.0980-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS construction. This tool meets NAS 907 Type B specifications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Aircraft Extension Drill #40 used for?

The CHICAGO-LATROBE Aircraft Extension Drill #40 is used for drilling precision holes in aircraft assembly and maintenance. Its 12-inch overall length and 135° split point allow access to tight spaces, while the black oxide HSS construction provides durability. It meets NAS 907 Type B specifications for aerospace applications.

What are the specifications of the CHICAGO-LATROBE Aircraft Extension Drill #40?

The CHICAGO-LATROBE Aircraft Extension Drill #40 (MPN 11164) has a 0.0980-inch diameter, 12-inch overall length, 135° split point, and black oxide HSS construction. It meets NAS 907 Type B specifications. This NAS-Spec high-speed steel drill bit is designed for aerospace use.

Where to buy the CHICAGO-LATROBE Aircraft Extension Drill #40 worldwide?

You can source the CHICAGO-LATROBE Aircraft Extension Drill #40 worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the right CHICAGO-LATROBE aircraft extension drill?

To select the right CHICAGO-LATROBE aircraft extension drill, match the diameter and overall length to your application. The #40 size (0.0980-inch) with 12-inch length suits deep-hole drilling in aerospace. Ensure the drill meets NAS 907 Type B specs for compliance. 3G Electric can help source the correct part.

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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