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CHICAGO-LATROBE Aircraft Extension Drill: 29/64", 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: 29/64", 12" Overall Lg, 135° Split Point

The CHICAGO-LATROBE Aircraft Extension Drill (SKU 11121, MPN 11121) is a NAS-Spec high-speed steel aircraft-extension drill bit with a 29/64" diameter. It features a 12" overall length, 135° split point, and black…

SKU 3G-OTH-207888

Brand
CHICAGO-LATROBE
Item
Aircraft Extension Drill: 29/64", 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
11121
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 (SKU 11121, MPN 11121) is a NAS-Spec high-speed steel aircraft-extension drill bit with a 29/64" diameter. It features a 12" overall length, 135° split point, and black oxide finish. The drill conforms to NAS 907 Type B specification and has a decimal equivalent of 0.4531 inches.

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 standards for aircraft maintenance and manufacturing.

What are the specifications of the CHICAGO-LATROBE 11121 drill?

The CHICAGO-LATROBE 11121 is a 29/64" diameter, 12" overall length aircraft extension drill with a 135° split point and black oxide HSS finish. It conforms to NAS 907 Type B specification, with a decimal equivalent of 0.4531 inches, ideal for precision aerospace drilling.

Where to buy CHICAGO-LATROBE aircraft extension drills worldwide?

3G Electric supplies CHICAGO-LATROBE aircraft extension drills worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this NAS-spec drill bit to your facility, ensuring compliance with aerospace standards.

How to select the right aircraft extension drill for NAS 907 applications?

Select a drill that matches the required diameter, overall length, and point geometry per NAS 907 Type B. For deep-hole drilling in aerospace alloys, a 135° split point and black oxide HSS finish, as on the CHICAGO-LATROBE 11121, reduce walking and improve chip flow. Consult your spec sheet for exact dimensions.

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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