CHICAGO-LATROBE Jobber Length Drill Bit: #51, 135° Split Point, TiN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #51 is a NAS-Spec high-speed steel drill bit for aerospace applications, featuring a TiN-coated HSS construction with a 135° split point per NAS 907 Type B. This bit has a…
SKU 3G-OTH-190254
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #51 is a NAS-Spec high-speed steel drill bit for aerospace applications, featuring a TiN-coated HSS construction with a 135° split point per NAS 907 Type B. This bit has a 0.0670-inch diameter (MPN 41721), designed for precision drilling in demanding industrial environments.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit #51 used for?
This drill bit is designed for precision drilling in aerospace applications, meeting NAS 907 Type B specifications. Its 135° split point reduces walking and requires less thrust, making it ideal for high-strength materials. The TiN coating extends tool life and improves chip flow in production environments.
What are the specifications of the CHICAGO-LATROBE 41721 drill bit?
The CHICAGO-LATROBE 41721 is a #51 jobber length drill bit with a 0.0670-inch diameter, 135° split point, and TiN-coated HSS construction. It conforms to NAS 907 Type B standards for aerospace use. The split point geometry enables self-centering and reduces drilling force on hard alloys.
Where to buy CHICAGO-LATROBE drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE drill bits worldwide, including the NAS-spec 41721 model. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this aerospace-grade tooling.
How to select the right CHICAGO-LATROBE drill bit for aerospace materials?
For aerospace alloys, choose a TiN-coated HSS bit like the CHICAGO-LATROBE 41721 with a 135° split point to reduce walking and heat. Match the diameter to your hole tolerance (0.0670 inch for #51). Ensure the bit meets NAS 907 Type B for compliance. Use proper coolant and peck drilling for deep holes.
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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.















