CHICAGO-LATROBE Jobber Length Drill Bit: #59, 135° Split Point, Black Oxide HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #59 is a NAS-Spec High-Speed Steel drill bit for aerospace applications, featuring a 135° split point and black oxide HSS construction per NAS 907 Type B. With a diameter…
SKU 3G-OTH-190061
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #59 is a NAS-Spec High-Speed Steel drill bit for aerospace applications, featuring a 135° split point and black oxide HSS construction per NAS 907 Type B. With a diameter of 0.0410 inches (MPN 44729), it is designed for precision drilling in demanding industrial environments.
Frequently Asked Questions
What is the CHICAGO-LATROBE #59 drill bit used for?
The CHICAGO-LATROBE #59 Jobber Length Drill Bit (MPN 44729) is designed for precision drilling in aerospace applications. Its 135° split point reduces walking and thrust, while the black oxide HSS construction provides heat resistance and lubricity for use on metals and alloys.
What are the specifications of the CHICAGO-LATROBE #59 drill bit?
This CHICAGO-LATROBE Jobber Length Drill Bit has a #59 wire gauge diameter of 0.0410 inches, a 135° split point, and black oxide high-speed steel (HSS) construction. It meets NAS 907 Type B standards for aerospace drilling tasks.
Where to buy CHICAGO-LATROBE #59 drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE #59 Jobber Length Drill Bits (MPN 44729) worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times.
How to select the right CHICAGO-LATROBE drill bit for aerospace work?
For aerospace drilling, choose a CHICAGO-LATROBE bit that meets NAS 907 Type B specs, like the #59 (0.0410 in) with a 135° split point. The black oxide HSS material resists heat and wear. Match the bit size to your hole diameter and material hardness for best results.
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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.


