EXW Singapore — collect or forward from our Singapore office.

3G Electric
CHICAGO-LATROBE NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, 31/64" - 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 for Aerospace, 31/64"

The CHICAGO-LATROBE Jobber Length Drill Bit (31/64", MPN 47657) is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, featuring a TiN-Coated Cobalt construction with a 135° Split Point per NAS 907 Type B. With…

SKU 3G-OTH-200346

Brand
CHICAGO-LATROBE
Item
NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, 31/64"
Part Number
47657
Category
NAS-Spec Cobalt Jobber-Length Drill Bits for Aerospace
Available to Order
Also known as:47657CHICAGO-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

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
47657
Type
TiN-Coated Cobalt, NAS 907 Type B
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

The CHICAGO-LATROBE Jobber Length Drill Bit (31/64", MPN 47657) is a NAS-Spec Cobalt Jobber-Length Drill Bit for Aerospace, featuring a TiN-Coated Cobalt construction with a 135° Split Point per NAS 907 Type B. With a diameter of 0.4844 inches, this bit is designed for demanding aerospace applications, backed by 3G Electric's specialist sourcing and support across 14 industrial departments.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 47657 used for?

This drill bit is designed for aerospace and high-precision industrial drilling applications. Its 135° split point reduces walking, while the TiN-coated cobalt construction provides heat resistance and extended tool life in tough materials like stainless steel and titanium.

What are the specifications of the CHICAGO-LATROBE 47657 drill bit?

The CHICAGO-LATROBE 47657 is a jobber length drill bit with a 31/64" diameter (0.4844 inches), 135° split point, and TiN-coated cobalt material. It meets NAS 907 Type B standards, making it suitable for aerospace-grade drilling tasks.

Where to buy CHICAGO-LATROBE 47657 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 47657 drill bit to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this aerospace-grade tool.

How to select the right CHICAGO-LATROBE drill bit for aerospace work?

For aerospace drilling, choose a bit with NAS 907 Type B compliance, like the CHICAGO-LATROBE 47657. The 135° split point and TiN-coated cobalt ensure precision and durability in hard alloys. Match the diameter to your hole size and use proper coolant for best results.

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 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 jobber-length drill bit is made from cobalt steel with a straw/bronze finish and features a 135° split point. It is designed for drilling in aerospace applications requiring NAS-spec compliance. The 5.1 mm diameter (0.2008 in decimal equivalent) is suitable for use in hard metals such as stainless steel and titanium
CHICAGO-LATROBE
This jobber-length drill bit is made from cobalt steel with a straw/bronze finish and features a 135° split point. It is designed for drilling in aerospace applications requiring NAS-spec compliance. The 5.1 mm diameter (0.2008 in decimal equivalent) is suitable for use in hard metals such as stainless steel and titanium
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 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 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
Cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. Designed for precision drilling in aerospace applications, suitable for use on tough materials such as stainless steel and titanium. Complies with NAS specifications
CHICAGO-LATROBE
Cobalt jobber-length drill bit with a 135° split point and straw/bronze finish. Designed for precision drilling in aerospace applications, suitable for use on tough materials such as stainless steel and titanium. Complies with NAS specifications
This TiAlN-coated cobalt jobber-length drill bit meets NAS specifications for aerospace applications. The 135° split point reduces walking and thrust, enabling drilling in hard materials such as stainless steel and titanium. Suitable for general-purpose holemaking in demanding industrial environments
CHICAGO-LATROBE
This TiAlN-coated cobalt jobber-length drill bit meets NAS specifications for aerospace applications. The 135° split point reduces walking and thrust, enabling drilling in hard materials such as stainless steel and titanium. Suitable for general-purpose holemaking in demanding industrial environments
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

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first