We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

CHICAGO-LATROBE Jobber Length Drill Bit: Letter U, 135° Split Point, TiCN-Coated HSS - 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 Jobber Length Drill Bit: Letter U, 135° Split Point, TiCN-Coated HSS

The CHICAGO-LATROBE Jobber Length Drill Bit (Letter U) is a NAS-Spec High-Speed Steel drill bit for aerospace applications, featuring a TiCN-Coated HSS construction and a 135° Split Point per NAS 907 Type B. With a…

SKU 3G-OTH-190247

Brand
CHICAGO-LATROBE
Item
Jobber Length Drill Bit: Letter U, 135° Split Point, TiCN-Coated HSS
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

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
43791
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 U) is a NAS-Spec High-Speed Steel drill bit for aerospace applications, featuring a TiCN-Coated HSS construction and a 135° Split Point per NAS 907 Type B. With a diameter of 0.3680 inches (MPN 43791), this tool is designed for precision drilling in demanding industrial environments.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit 43791 used for?

This drill bit is designed for aerospace and high-precision industrial drilling applications. Its TiCN coating and 135° split point improve cutting performance in tough materials. The NAS 907 Type B specification ensures compliance with aerospace standards for jobber-length drilling tasks.

What are the specifications of the CHICAGO-LATROBE 43791 drill bit?

The CHICAGO-LATROBE 43791 is a Letter U jobber length drill bit with a 0.3680 inch diameter. It features a 135° split point and TiCN-coated high-speed steel, meeting NAS 907 Type B aerospace specifications. The coating enhances wear resistance and tool life.

Where to buy CHICAGO-LATROBE 43791 drill bits worldwide?

3G Electric supplies the CHICAGO-LATROBE 43791 drill bit worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this NAS-spec aerospace drill bit for your operations.

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

For aerospace drilling, choose a bit meeting NAS 907 Type B standards like the CHICAGO-LATROBE 43791. The TiCN coating suits high-heat alloys, while the 135° split point reduces walking. Match the Letter U size (0.3680 inch) to your hole diameter and material hardness for optimal results.

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
CHICAGO-LATROBE Jobber Length Drill Bit: Letter S, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43789)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter S, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43789)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter L, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43782)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter L, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43782)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter T, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43790)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter T, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43790)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter R, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43788)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter R, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43788)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter M, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43783)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter M, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43783)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter U, 135° Split Point, TiN-Coated HSS, NAS 907 Type B (MPN 41791)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter U, 135° Split Point, TiN-Coated HSS, NAS 907 Type B (MPN 41791)

More from CHICAGO-LATROBE

View all CHICAGO-LATROBE parts
CHICAGO-LATROBE Jobber Length Drill Bit: #16, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45686)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: #16, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45686)
CHICAGO-LATROBE Jobber Length Drill Bit: #18, 135° Split Point, TiN-Coated HSS, NAS 907 Type B (MPN 41688)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: #18, 135° Split Point, TiN-Coated HSS, NAS 907 Type B (MPN 41688)
CHICAGO-LATROBE Jobber Length Drill Bit: #47, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43717)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: #47, 135° Split Point, TiCN-Coated HSS, NAS 907 Type B (MPN 43717)
CHICAGO-LATROBE Jobber Length Drill Bit: #13, 135° Split Point, TiAlN-Coated HSS, NAS 907 Type B (MPN 42683)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: #13, 135° Split Point, TiAlN-Coated HSS, NAS 907 Type B (MPN 42683)
CHICAGO-LATROBE Jobber Length Drill Bit: 2.1 mm, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45812)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: 2.1 mm, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45812)
CHICAGO-LATROBE Jobber Length Drill Bit: 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45784)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45784)
CHICAGO-LATROBE Jobber Length Drill Bit: Letter R, 135° Split Point, TiN-Coated HSS, NAS 907 Type B (MPN 41788)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: Letter R, 135° Split Point, TiN-Coated HSS, NAS 907 Type B (MPN 41788)
CHICAGO-LATROBE Jobber Length Drill Bit: 5 mm, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45843)
CHICAGO-LATROBE
CHICAGO-LATROBE Jobber Length Drill Bit: 5 mm, 135° Split Point, Black Oxide HSS, NAS 907 Type B (MPN 45843)