CHICAGO-LATROBE Jobber Length Drill Bit: #50, 135° Split Point, TiCN-Coated HSS
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
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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.
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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.















