CHICAGO-LATROBE Jobber Length Drill Bit: #57, 135° Point, TiN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #57 (MPN 41727) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiN-coated HSS construction, NAS 907 Type B design, and a 135° point. With a diameter of…
SKU 3G-OTH-190033
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #57 (MPN 41727) is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiN-coated HSS construction, NAS 907 Type B design, and a 135° point. With a diameter of 0.0430 inches, it meets stringent aerospace standards for precision drilling.
Frequently Asked Questions
What is the CHICAGO-LATROBE #57 jobber length drill bit used for?
This TiN-coated HSS drill bit is designed for aerospace applications requiring NAS 907 Type B compliance. Its #57 size (0.0430 inch) and 135° split point make it suitable for drilling precise holes in hardened steels and alloys used in aircraft manufacturing and maintenance.
What are the specifications of the CHICAGO-LATROBE 41727 drill bit?
The CHICAGO-LATROBE 41727 is a #57 jobber length drill bit with a 0.0430 inch diameter, 135° point angle, and TiN-coated high-speed steel construction. It meets NAS 907 Type B specifications for aerospace drilling applications, providing wear resistance and extended tool life.
Where to buy CHICAGO-LATROBE NAS 907 drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE NAS 907 Type B drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on the 41727 and other aerospace-grade tooling.
How to select the correct CHICAGO-LATROBE drill bit for aerospace work?
For aerospace drilling, select a bit that meets NAS 907 specifications like the CHICAGO-LATROBE 41727. Match the diameter (0.0430 inch for #57) to your hole size, use TiN coating for heat resistance, and ensure a 135° split point reduces walking on curved surfaces common in aircraft structures.
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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.















