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CHICAGO-LATROBE NAS-Spec HSS Jobber-Length Drill Bit #50 - 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 HSS Jobber-Length Drill Bit #50

The CHICAGO-LATROBE Jobber Length Drill Bit #50 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction with a 135° split point per NAS 907 Type B. With a diameter of 0.0700…

SKU 3G-OTH-190391

Brand
CHICAGO-LATROBE
Item
NAS-Spec HSS Jobber-Length Drill Bit #50
Part Number
43720
Category
NAS-Spec High-Speed Steel Jobber-Length Drill Bits for Aerospace
Available to Order
Also known as:43720CHICAGO-LATROBE
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
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Technical Specifications

CHICAGO-LATROBE
Manufacturer Part Number
43720
Type
TiCN-Coated HSS, NAS 907 Type B
Split Point
135°

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

Product Description

The CHICAGO-LATROBE Jobber Length Drill Bit #50 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction with a 135° split point per NAS 907 Type B. With a diameter of 0.0700 inches (MPN 43720), it is designed for precision drilling in demanding applications.

Frequently Asked Questions

What is the CHICAGO-LATROBE Jobber Length Drill Bit #50 used for?

This drill bit is designed for precision drilling in aerospace applications. Its 135° split point reduces walking and requires less thrust, while the TiCN coating extends tool life on high-strength alloys. It meets NAS 907 Type B specifications for critical aerospace fastening holes.

What are the specifications of the CHICAGO-LATROBE 43720 drill bit?

The CHICAGO-LATROBE 43720 is a #50 jobber length drill bit with a 0.0700-inch diameter. It features a 135° split point, TiCN-coated high-speed steel (HSS), and conforms to NAS 907 Type B. The manufacturer part number is 43720, and it is designed for aerospace-grade materials.

Where to buy CHICAGO-LATROBE drill bits worldwide?

3G Electric supplies CHICAGO-LATROBE drill bits worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the 43720 or other NAS-spec tooling.

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

For aerospace alloys, choose a bit with a 135° split point and TiCN coating like the CHICAGO-LATROBE 43720. The split point eliminates center punching, and the coating reduces friction. Match the diameter to your fastener hole tolerance. 3G Electric can help source the correct NAS 907 Type B bit for your application.

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.
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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.

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