CHICAGO-LATROBE Jobber Length Drill Bit: Letter T, 135° Split Point
The CHICAGO-LATROBE Jobber Length Drill Bit (Letter T, MPN 42790) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiAlN-coated HSS construction and a 135° split point. With a diameter of 0.3580…
SKU 3G-OTH-190168
Need installation or engineering help?
Ask a question
Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit (Letter T, MPN 42790) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiAlN-coated HSS construction and a 135° split point. With a diameter of 0.3580 inches, it is designed for precision drilling in demanding applications. 3G Electric interprets your demand and sources this genuine industrial tool across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit 42790 used for?
This TiAlN-coated HSS drill bit is designed for aerospace and high-precision drilling applications. The 135° split point reduces walking and thrust, making it suitable for hard materials like stainless steel and titanium alloys.
What are the specifications of the CHICAGO-LATROBE 42790 drill bit?
The CHICAGO-LATROBE 42790 is a jobber length drill bit with a Letter T size (0.3580 inch diameter). It features a 135° split point and TiAlN coating on high-speed steel, meeting NAS specs for aerospace use.
Where to buy CHICAGO-LATROBE 42790 drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE 42790 drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.
How to select the right CHICAGO-LATROBE drill bit for aerospace work?
For aerospace drilling, choose a bit with a 135° split point and TiAlN coating like the CHICAGO-LATROBE 42790. Match the Letter T size (0.3580 inch) to your hole requirement. Ensure the bit is NAS-spec for compliance.
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.















