CHICAGO-LATROBE Jobber Length Drill Bit: Letter I, 135° Split Point, TiCN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit (Letter I, MPN 43779) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction and a 135° split point per NAS 907 Type B. With a…
SKU 3G-OTH-190463
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit (Letter I, MPN 43779) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction and a 135° split point per NAS 907 Type B. With a diameter of 0.2720 inches, this jobber-length bit is designed for precision drilling in demanding applications.
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 43779 used for?
This drill bit is designed for aerospace applications requiring NAS 907 Type B compliance. Its 135° split point and TiCN-coated HSS construction enable precise drilling in high-strength alloys, stainless steel, and titanium, reducing thrust and improving chip evacuation.
What are the specifications of the CHICAGO-LATROBE 43779 drill bit?
The CHICAGO-LATROBE 43779 is a jobber-length drill bit with a Letter I size (0.2720 inch diameter), 135° split point, and TiCN-coated high-speed steel. It meets NAS 907 Type B standards for aerospace drilling, offering wear resistance and extended tool life.
Where to buy CHICAGO-LATROBE 43779 worldwide?
3G Electric supplies the CHICAGO-LATROBE 43779 drill bit 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 meeting NAS 907 Type B, like the CHICAGO-LATROBE 43779. Match the diameter (0.2720 inch for Letter I) to your hole size, and use TiCN coating for heat resistance in titanium or stainless steel. A 135° split point reduces walking and thrust.
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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.















