CHICAGO-LATROBE Jobber Length Drill Bit: Letter J, 135° Split Point
SKU 3G-OTH-190502
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Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit 42780 used for?
This TiAlN-coated HSS drill bit is designed for aerospace and NAS-spec applications. Its 135° split point reduces walking and thrust, making it suitable for drilling hard materials like titanium and stainless steel in precision manufacturing.
What are the specifications of the CHICAGO-LATROBE 42780 drill bit?
The CHICAGO-LATROBE 42780 is a jobber length drill bit with a letter J size (0.2770 inch), 135° split point, and TiAlN-coated high-speed steel. It meets NAS specifications for aerospace drilling, offering heat resistance and extended tool life.
Where to buy CHICAGO-LATROBE 42780 drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE 42780 drill bits worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this NAS-spec TiAlN-coated HSS bit to your facility, regardless of location.
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 42780. Match the letter J size (0.2770 inch) to your hole tolerance. Use proper coolant and pecking cycles to manage heat in hard alloys.
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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.















