CHICAGO-LATROBE Jobber Length Drill Bit: Letter J, 135° Split Point, TiCN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit, Letter J (MPN 43780), is a NAS-Spec High-Speed Steel drill bit for aerospace applications. It features a TiCN-coated HSS construction, NAS 907 Type B design, and a 135°…
SKU 3G-OTH-190511
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit, Letter J (MPN 43780), is a NAS-Spec High-Speed Steel drill bit for aerospace applications. It features a TiCN-coated HSS construction, NAS 907 Type B design, and a 135° split point, with a diameter of 0.2770 inches.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit 43780 used for?
This drill bit is designed for aerospace drilling applications requiring NAS 907 Type B compliance. Its 135° split point reduces walking and thrust, while the TiCN coating extends tool life in high-strength alloys. It is suitable for precision hole-making in aircraft-grade materials.
What are the specifications of the CHICAGO-LATROBE 43780 drill bit?
The CHICAGO-LATROBE 43780 is a jobber-length drill bit with a letter J size (0.2770 inch diameter). It features a 135° split point, TiCN-coated high-speed steel (HSS), and meets NAS 907 Type B standards. The manufacturer part number is 43780.
Where to buy CHICAGO-LATROBE 43780 drill bits worldwide?
3G Electric supplies the CHICAGO-LATROBE 43780 drill bit to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this NAS-spec aerospace tool globally.
How to select the correct CHICAGO-LATROBE drill bit for aerospace work?
Select a drill bit that matches the required hole diameter and material. For aerospace alloys, choose a TiCN-coated HSS bit like the CHICAGO-LATROBE 43780 with a 135° split point to reduce walking. Ensure compliance with NAS 907 Type B if specified by your engineering drawings.
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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.
