Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit - NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit

<p>The CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit (Mfr #47904) is engineered for aerospace-grade drilling. Featuring a 9.4 mm diameter, 135° split point, and straw/bronze cobalt construction, it delivers…

SKU 3G-OTH-200388

Brand
CHICAGO-LATROBE
Item
NAS-Spec Cobalt Jobber-Length Drill Bit
Part Number
47904
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
Available to Order
Also known as:47904CHICAGO-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.
Worldwide Shipping
Air & sea freight
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
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
47904
Type
Straw/Bronze Cobalt
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>The CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit (Mfr #47904) is engineered for aerospace-grade drilling. Featuring a 9.4 mm diameter, 135° split point, and straw/bronze cobalt construction, it delivers precision and durability in demanding materials. This NAS-spec bit meets stringent aerospace standards, making it ideal for aircraft maintenance, repair, and manufacturing operations.</p><p>For Singapore procurement, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia. Worldwide shipping is available. Contact us for current pricing and availability.</p>

Frequently Asked Questions

What are the key specifications of this drill bit?

It is a 9.4 mm NAS-spec cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. The manufacturer part number is 47904.

Can I get a quote in SGD and fast delivery in Singapore?

Yes, 3G Electric provides SGD quotes on request. For Singapore buyers, GST is handled, and we offer fast delivery across Singapore and Southeast Asia.

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

CHICAGO-LATROBE Products

3G Electric supplies CHICAGO-LATROBE nas-spec cobalt jobber-length drill bits for aerospace. 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 →
This 23/64" jobber-length drill bit is made of TiN-coated cobalt and features a 135° split point. It conforms to NAS 907 Type J standards. Used for drilling in aerospace and other high-precision industrial applications where tough materials are encountered
CHICAGO-LATROBE
This 23/64" jobber-length drill bit is made of TiN-coated cobalt and features a 135° split point. It conforms to NAS 907 Type J standards. Used for drilling in aerospace and other high-precision industrial applications where tough materials are encountered
This #21 jobber-length drill bit features TiN-coated cobalt construction with a 135° split point, conforming to NAS 907 Type J specifications. The 0.1590-inch diameter bit is designed for precision drilling in aerospace and other demanding applications, reducing walking and improving hole accuracy in tough materials
CHICAGO-LATROBE
This #21 jobber-length drill bit features TiN-coated cobalt construction with a 135° split point, conforming to NAS 907 Type J specifications. The 0.1590-inch diameter bit is designed for precision drilling in aerospace and other demanding applications, reducing walking and improving hole accuracy in tough materials
This 29/64" (0.4531 inch) jobber-length drill bit is made from TiAlN-coated cobalt and features a 135° split point. It meets NAS specifications for aerospace applications. The split point reduces walking during start, and the coating extends tool life when drilling high-strength alloys
CHICAGO-LATROBE
This 29/64" (0.4531 inch) jobber-length drill bit is made from TiAlN-coated cobalt and features a 135° split point. It meets NAS specifications for aerospace applications. The split point reduces walking during start, and the coating extends tool life when drilling high-strength alloys
This 1 mm jobber-length drill bit is made of cobalt steel with a straw/bronze finish, conforming to NAS 907 Type B. The 135° split point reduces walking and thrust, enabling accurate drilling in hard metals and stainless steel. Suitable for aerospace and high-precision industrial drilling applications
CHICAGO-LATROBE
This 1 mm jobber-length drill bit is made of cobalt steel with a straw/bronze finish, conforming to NAS 907 Type B. The 135° split point reduces walking and thrust, enabling accurate drilling in hard metals and stainless steel. Suitable for aerospace and high-precision industrial drilling applications
This CHICAGO-LATROBE jobber-length drill bit is #13 size with 0.1850-inch diameter, made of TiN-coated cobalt and featuring a 135° split point. It meets NAS 907 Type J standards for aerospace drilling applications. Suitable for use in high-precision industrial drilling of tough materials
CHICAGO-LATROBE
This CHICAGO-LATROBE jobber-length drill bit is #13 size with 0.1850-inch diameter, made of TiN-coated cobalt and featuring a 135° split point. It meets NAS 907 Type J standards for aerospace drilling applications. Suitable for use in high-precision industrial drilling of tough materials
This jobber-length drill bit is made from TiN-coated cobalt and features a 135° split point. It meets NAS 907 Type B specifications for aerospace drilling applications. The 8 mm (0.3150 in) diameter is suited for precision holemaking in hard materials
CHICAGO-LATROBE
This jobber-length drill bit is made from TiN-coated cobalt and features a 135° split point. It meets NAS 907 Type B specifications for aerospace drilling applications. The 8 mm (0.3150 in) diameter is suited for precision holemaking in hard materials
This NAS-Spec cobalt jobber-length drill bit is designed for precision drilling in aerospace applications. The 135° split point reduces walking and requires less thrust, making it suitable for drilling hard materials such as stainless steel and titanium. The straw/bronze cobalt finish provides heat resistance and extended tool life
CHICAGO-LATROBE
This NAS-Spec cobalt jobber-length drill bit is designed for precision drilling in aerospace applications. The 135° split point reduces walking and requires less thrust, making it suitable for drilling hard materials such as stainless steel and titanium. The straw/bronze cobalt finish provides heat resistance and extended tool life
This TiN-coated cobalt jobber-length drill bit conforms to NAS 907 Type B and features a 135° split point. It is designed for precision drilling in aerospace applications, including hardened steels and superalloys. The 2 mm diameter bit is suitable for high-speed operations in demanding materials
CHICAGO-LATROBE
This TiN-coated cobalt jobber-length drill bit conforms to NAS 907 Type B and features a 135° split point. It is designed for precision drilling in aerospace applications, including hardened steels and superalloys. The 2 mm diameter bit is suitable for high-speed operations in demanding materials

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first