Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
CHICAGO-LATROBE NAS-Spec HSS Aircraft-Extension Drill Bit #28 - NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
CHICAGO-LATROBENAS-Spec High-Speed Steel Aircraft-Extension Drill Bits

CHICAGO-LATROBE NAS-Spec HSS Aircraft-Extension Drill Bit #28

<p>This CHICAGO-LATROBE NAS-Spec HSS Aircraft-Extension Drill Bit #28 (MPN 11058) is engineered for precision drilling in aerospace and industrial applications. Featuring a 6" overall length and a 135° split point…

SKU 3G-OTH-208108

Brand
CHICAGO-LATROBE
Item
NAS-Spec HSS Aircraft-Extension Drill Bit #28
Part Number
11058
Category
NAS-Spec High-Speed Steel Aircraft-Extension Drill Bits
Available to Order
Also known as:11058CHICAGO-LATROBE
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
11058
Type
Black Oxide HSS
Overall Lg
6"
Split Point
135°

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

<p>This CHICAGO-LATROBE NAS-Spec HSS Aircraft-Extension Drill Bit #28 (MPN 11058) is engineered for precision drilling in aerospace and industrial applications. Featuring a 6" overall length and a 135° split point, this black oxide high-speed steel bit ensures accurate starts and reduced walking. The NAS-Spec compliance guarantees adherence to stringent aerospace standards.</p><p>Ideal for maintenance, repair, and production environments, this drill bit offers durability and performance. As a Singapore-based supplier, 3G Electric provides SGD quotes on request, handles GST for local buyers, and offers fast delivery across Singapore and Southeast Asia. Worldwide shipping is also available.</p>

Frequently Asked Questions

What are the key specifications of this drill bit?

It is a #28 NAS-Spec HSS aircraft-extension drill bit with a 6" overall length, 135° split point, and black oxide finish. The manufacturer part number is 11058.

Can I get a quote in SGD and how is delivery handled?

Yes, we provide SGD quotes on request. For Singapore buyers, GST is handled. We offer fast delivery in Singapore and Southeast Asia, and worldwide shipping is available.

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.
Not sure this is the right part? Photo-identify it→

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts →
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
CHICAGO-LATROBE
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

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first