CHICAGO-LATROBE Jobber Length Drill Bit: #29, 135° Split Point, TiAlN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #29 is a NAS-Spec High-Speed Steel jobber-length drill bit for aerospace, featuring a TiAlN-coated HSS construction with a 135° split point per NAS 907 Type B (MPN 42699)…
SKU 3G-OTH-190267
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #29 is a NAS-Spec High-Speed Steel jobber-length drill bit for aerospace, featuring a TiAlN-coated HSS construction with a 135° split point per NAS 907 Type B (MPN 42699). It has a diameter of 0.1360 inches, designed for precision drilling in demanding applications.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit #29 used for?
This drill bit is designed for aerospace applications requiring NAS 907 Type B compliance. Its 135° split point reduces walking and thrust, while the TiAlN coating extends tool life in high-temperature alloys. It is suitable for drilling precision holes in materials such as titanium and stainless steel.
What are the specifications of the CHICAGO-LATROBE 42699 drill bit?
The CHICAGO-LATROBE 42699 is a #29 jobber length drill bit with a 0.1360-inch diameter, 135° split point, and TiAlN-coated high-speed steel. It meets NAS 907 Type B standards for aerospace drilling. The split point geometry enhances cutting accuracy and reduces the need for center punching.
Where to buy CHICAGO-LATROBE drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE drill bits worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times. We source and deliver this NAS-spec bit to support aerospace and precision manufacturing operations.
How to select the right CHICAGO-LATROBE drill bit for aerospace work?
Select based on material and hole tolerance. For hard alloys, choose TiAlN-coated HSS bits like the #29 (0.1360 inch) with a 135° split point to reduce walking. Ensure the bit meets NAS 907 Type B for aerospace specs. Match diameter to your fastener or reaming requirement. 3G Electric can advise on sizing.
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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.















