CHICAGO-LATROBE Jobber Length Drill Bit: #4, 135° Split Point, Black Oxide HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #4 is a NAS-Spec High-Speed Steel jobber-length drill bit for aerospace, featuring a 135° split point and black oxide HSS finish per NAS 907 Type B. With a 0.2090-inch…
SKU 3G-OTH-190585
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #4 is a NAS-Spec High-Speed Steel jobber-length drill bit for aerospace, featuring a 135° split point and black oxide HSS finish per NAS 907 Type B. With a 0.2090-inch diameter (MPN 45674), it is designed for precision drilling in demanding applications.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit #4 used for?
This CHICAGO-LATROBE drill bit is designed for aerospace and precision industrial drilling. Its 135° split point reduces walking on curved surfaces, while the black oxide HSS construction provides heat resistance and lubricity for extended tool life in demanding materials.
What are the specifications of the CHICAGO-LATROBE NAS 907 Type B drill bit?
The CHICAGO-LATROBE Jobber Length Drill Bit #4 (MPN 45674) has a 0.2090 inch diameter, 135° split point, and black oxide high-speed steel finish. It meets NAS 907 Type B aerospace standards, ensuring compatibility with critical fastener hole requirements.
Where to buy CHICAGO-LATROBE drill bits for aerospace worldwide?
3G Electric supplies CHICAGO-LATROBE NAS-spec drill bits worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine aerospace-grade tooling to your facility, regardless of location.
How to select the correct CHICAGO-LATROBE drill bit for aerospace applications?
Select based on material and hole tolerance. For aerospace alloys, choose a 135° split point like this #4 bit to minimize thrust and work hardening. Verify the NAS 907 Type B designation matches your fastener spec. 3G Electric can help match the correct CHICAGO-LATROBE part to your application.
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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.
