CHICAGO-LATROBE Jobber Length Drill Bit: Letter S, 135° Split Point, TiN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit (Letter S, MPN 41789) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiN-coated HSS construction with a 135° split point per NAS 907 Type B. Its key…
SKU 3G-OTH-190163
Need installation or engineering help?
Ask a question
Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit (Letter S, MPN 41789) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiN-coated HSS construction with a 135° split point per NAS 907 Type B. Its key specification is a 0.3480-inch diameter. 3G Electric interprets your demand for specialized industrial tooling, sourcing this genuine OEM bit across our broad supply network—backed by specialist depth in controls and combustion—to deliver the right solution for your application.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit 41789 used for?
This TiN-coated HSS drill bit is designed for aerospace applications requiring NAS 907 Type B compliance. It drills precise holes in hardened steels and alloys, with the 135° split point reducing walking and thrust. The Letter S size (0.3480 in) suits fastener holes in aircraft assembly and maintenance.
What are the specifications of the CHICAGO-LATROBE 41789 drill bit?
The CHICAGO-LATROBE 41789 is a jobber-length drill bit with a Letter S diameter of 0.3480 in. It features a 135° split point, TiN-coated HSS construction, and meets NAS 907 Type B standards. The coating extends tool life in high-temperature aerospace materials.
Where to buy CHICAGO-LATROBE 41789 drill bits worldwide?
3G Electric supplies the CHICAGO-LATROBE 41789 drill bit worldwide. As a global industrial distributor since 1990, we handle full logistics, customs clearance, and delivery to any country. Contact us for availability and lead time; we source and deliver this NAS-spec tool to your facility.
How to select the correct CHICAGO-LATROBE drill bit for aerospace work?
Select based on hole size and material. The 41789 (Letter S, 0.3480 in) suits NAS 907 Type B applications. For aerospace alloys, TiN coating reduces friction and heat. Always match the split-point angle (135°) to your drill press or CNC setup to minimize wandering on curved surfaces.
Used in
Common applications for CHICAGO-LATROBECHICAGO-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.
