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

CHICAGO-LATROBE NAS-Spec High-Speed Steel Jobber-Length Drill Bit - NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
CHICAGO-LATROBENAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace

CHICAGO-LATROBE NAS-Spec High-Speed Steel Jobber-Length Drill Bit

The CHICAGO-LATROBE Jobber Length Drill Bit (Letter O, MPN 43785) is a NAS-Spec high-speed steel tool with a TiCN coating and 135° split point, meeting NAS 907 Type B requirements. It features a 0.3160-inch diameter…

SKU 3G-OTH-190346

Brand
CHICAGO-LATROBE
Item
NAS-Spec High-Speed Steel Jobber-Length Drill Bit
Category
NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
Available to Order
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
43785
Type
TiCN-Coated HSS, 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 (Letter O, MPN 43785) is a NAS-Spec high-speed steel tool with a TiCN coating and 135° split point, meeting NAS 907 Type B requirements. It features a 0.3160-inch diameter, designed for aerospace applications. 3G Electric interprets demand and delivers this genuine industrial cutting tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 43785 used for?

This drill bit is designed for aerospace and precision manufacturing applications requiring NAS 907 Type B compliance. Its TiCN coating and 135° split point enable efficient drilling in high-strength alloys and stainless steels, reducing thrust and improving hole accuracy.

What are the specifications of the CHICAGO-LATROBE 43785 drill bit?

The CHICAGO-LATROBE 43785 is a jobber-length drill bit with a Letter O diameter of 0.3160 inches. It features a 135° split point, TiCN-coated high-speed steel, and meets NAS 907 Type B aerospace specifications. The manufacturer part number is 43785.

Where to buy CHICAGO-LATROBE 43785 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 43785 drill bit to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

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

For aerospace drilling, choose a bit that meets NAS 907 Type B standards, like the CHICAGO-LATROBE 43785. The TiCN coating and 135° split point improve performance in tough alloys. Always match the diameter to your hole requirement and use proper speeds and feeds for HSS tooling.

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 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
This jobber-length drill bit is made from TiN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B specifications for aerospace drilling applications. The Letter O size has a 0.3160-inch diameter, designed for precise holemaking in high-strength materials
CHICAGO-LATROBE
This jobber-length drill bit is made from TiN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B specifications for aerospace drilling applications. The Letter O size has a 0.3160-inch diameter, designed for precise holemaking in high-strength materials
CHICAGO-LATROBE jobber-length drill bit, Letter L size (0.2900 in diameter), made of TiCN-coated high-speed steel. Features a 135° split point and meets NAS 907 Type B standards. Designed for drilling in high-strength alloys such as stainless steel and titanium in aerospace and precision manufacturing applications
CHICAGO-LATROBE
CHICAGO-LATROBE jobber-length drill bit, Letter L size (0.2900 in diameter), made of TiCN-coated high-speed steel. Features a 135° split point and meets NAS 907 Type B standards. Designed for drilling in high-strength alloys such as stainless steel and titanium in aerospace and precision manufacturing applications
This jobber-length drill bit is made from TiCN-coated high-speed steel and conforms to NAS 907 Type B specifications. It features a 135° split point to reduce walking and thrust during drilling. Suitable for general-purpose drilling in aerospace and other precision applications requiring NAS-spec tooling
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and conforms to NAS 907 Type B specifications. It features a 135° split point to reduce walking and thrust during drilling. Suitable for general-purpose drilling in aerospace and other precision applications requiring NAS-spec tooling
This jobber-length drill bit is made from TiCN-coated high-speed steel and meets NAS 907 Type B specifications. It features a 135° split point for reduced walking and improved penetration. Suitable for precision drilling in aerospace and other demanding industrial applications
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and meets NAS 907 Type B specifications. It features a 135° split point for reduced walking and improved penetration. Suitable for precision drilling in aerospace and other demanding industrial applications
This jobber-length drill bit is made of TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace and other demanding applications where NAS specifications are required. The split point reduces walking and thrust, while the coating extends tool life in high-strength alloys
CHICAGO-LATROBE
This jobber-length drill bit is made of TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace and other demanding applications where NAS specifications are required. The split point reduces walking and thrust, while the coating extends tool life in high-strength alloys
This jobber-length drill bit is made from TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace applications, particularly in high-strength alloys, stainless steel, and titanium. The split point reduces thrust and improves chip evacuation
CHICAGO-LATROBE
This jobber-length drill bit is made from TiCN-coated high-speed steel and features a 135° split point per NAS 907 Type B. It is designed for precision drilling in aerospace applications, particularly in high-strength alloys, stainless steel, and titanium. The split point reduces thrust and improves chip evacuation

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
This jobber-length drill bit is made from TiN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B specifications. Designed for precision drilling in aerospace and other demanding industrial applications
CHICAGO-LATROBE
This jobber-length drill bit is made from TiN-coated high-speed steel and features a 135° split point. It conforms to NAS 907 Type B specifications. Designed for precision drilling in aerospace and other demanding industrial applications
This TiCN-coated high-speed steel jobber-length drill bit meets NAS 907 Type B specifications for aerospace applications. The 135° split point reduces walking and thrust, enabling precise drilling in tough materials. Suitable for general industrial drilling where NAS-spec compliance is required
CHICAGO-LATROBE
This TiCN-coated high-speed steel jobber-length drill bit meets NAS 907 Type B specifications for aerospace applications. The 135° split point reduces walking and thrust, enabling precise drilling in tough materials. Suitable for general industrial drilling where NAS-spec compliance is required
This jobber-length drill bit is made from high-speed steel with a titanium carbonitride (TiCN) coating and a 135° split point. It meets NAS 907 Type B specifications and has a diameter of 27/64" (0.4219"). Suitable for general-purpose drilling in ferrous and non-ferrous materials, including harder alloys, where reduced walking and thrust are required
CHICAGO-LATROBE
This jobber-length drill bit is made from high-speed steel with a titanium carbonitride (TiCN) coating and a 135° split point. It meets NAS 907 Type B specifications and has a diameter of 27/64" (0.4219"). Suitable for general-purpose drilling in ferrous and non-ferrous materials, including harder alloys, where reduced walking and thrust are required
This jobber-length drill bit is made from TiN-coated high-speed steel with a 135° point angle, conforming to NAS 907 Type B specifications. It is designed for precision hole drilling in aerospace applications, where reduced walking and improved accuracy in hard metals and composites are required
CHICAGO-LATROBE
This jobber-length drill bit is made from TiN-coated high-speed steel with a 135° point angle, conforming to NAS 907 Type B specifications. It is designed for precision hole drilling in aerospace applications, where reduced walking and improved accuracy in hard metals and composites are required
This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It meets NAS 907 Type B standards for aerospace applications. The split point reduces walking and thrust, making it suitable for drilling in hard metals and sheet materials
CHICAGO-LATROBE
This jobber-length drill bit is made from high-speed steel with a black oxide finish and a 135° split point. It meets NAS 907 Type B standards for aerospace applications. The split point reduces walking and thrust, making it suitable for drilling in hard metals and sheet materials
This #77 jobber-length drill bit is made from high-speed steel with a black oxide finish, featuring a 135° split point. It conforms to NAS 907 Type B specifications for aerospace applications. The split point reduces walking and allows for precise hole starting on curved surfaces. Suitable for drilling in various materials including stainless steel and titanium alloys
CHICAGO-LATROBE
This #77 jobber-length drill bit is made from high-speed steel with a black oxide finish, featuring a 135° split point. It conforms to NAS 907 Type B specifications for aerospace applications. The split point reduces walking and allows for precise hole starting on curved surfaces. Suitable for drilling in various materials including stainless steel and titanium alloys
CHICAGO-LATROBE jobber-length drill bit with 31/64" diameter, made from TiCN-coated high-speed steel. Features a 135° split point and meets NAS 907 Type B specifications. Used for drilling high-strength alloys and stainless steels in aerospace applications
CHICAGO-LATROBE
CHICAGO-LATROBE jobber-length drill bit with 31/64" diameter, made from TiCN-coated high-speed steel. Features a 135° split point and meets NAS 907 Type B specifications. Used for drilling high-strength alloys and stainless steels in aerospace applications
This jobber-length drill bit is made of high-speed steel with a black oxide finish. It features a 135° split point and meets NAS 907 Type B specifications. Suitable for drilling in aerospace and precision machining applications, the split point reduces walking and requires less thrust
CHICAGO-LATROBE
This jobber-length drill bit is made of high-speed steel with a black oxide finish. It features a 135° split point and meets NAS 907 Type B specifications. Suitable for drilling in aerospace and precision machining applications, the split point reduces walking and requires less thrust