CHICAGO-LATROBE Jobber Length Drill Bit: #43, 135° Split Point, TiN-Coated Cobalt
The CHICAGO-LATROBE Jobber Length Drill Bit #43 is a NAS-Spec Cobalt drill bit for aerospace applications, featuring a TiN-Coated Cobalt construction, 135° split point, and NAS 907 Type J compliance. With a diameter…
SKU 3G-OTH-200325
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #43 is a NAS-Spec Cobalt drill bit for aerospace applications, featuring a TiN-Coated Cobalt construction, 135° split point, and NAS 907 Type J compliance. With a diameter of 0.0890 inches (MPN 54078), it is designed for precision drilling in demanding industrial environments.
Frequently Asked Questions
What is the CHICAGO-LATROBE #43 jobber length drill bit used for?
This TiN-coated cobalt drill bit is designed for aerospace applications per NAS 907 Type J. It drills precise holes in hardened steels, stainless steels, and titanium alloys. The 135° split point reduces walking and eliminates the need for a center punch.
What are the specifications of the CHICAGO-LATROBE 54078 drill bit?
The CHICAGO-LATROBE 54078 is a #43 jobber length drill bit with a 0.0890 inch diameter, 135° split point, and TiN-coated cobalt construction. It meets NAS 907 Type J specifications for aerospace drilling. The coating extends tool life in high-temperature alloys.
Where to buy CHICAGO-LATROBE 54078 drill bits worldwide?
3G Electric supplies the CHICAGO-LATROBE 54078 drill bit worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time. We source genuine NAS-spec tooling for aerospace and industrial buyers globally.
How to select the correct jobber length drill bit for aerospace materials?
For aerospace alloys like titanium and Inconel, choose a cobalt drill bit with TiN coating and a 135° split point, such as the CHICAGO-LATROBE NAS 907 Type J. The split point reduces thrust and prevents wandering. Match the diameter to your hole tolerance and use proper coolant.
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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.

