CHICAGO-LATROBE Jobber Length Drill Bit: #31, 135° Split Point, TiCN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #31 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction with a 135° split point per NAS 907 Type B. With a 0.1200-inch diameter…
SKU 3G-OTH-190409
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #31 is a NAS-Spec high-speed steel drill bit for aerospace, featuring a TiCN-coated HSS construction with a 135° split point per NAS 907 Type B. With a 0.1200-inch diameter (MPN 43701), it is designed for precision drilling in demanding industrial applications.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit #31 used for?
This drill bit is designed for aerospace and precision manufacturing applications requiring NAS 907 Type B compliance. Its 135° split point reduces walking and thrust, while the TiCN coating extends tool life in high-strength alloys. It is ideal for drilling holes in materials such as titanium, stainless steel, and nickel-based superalloys.
What are the specifications of the CHICAGO-LATROBE #31 drill bit?
The CHICAGO-LATROBE Jobber Length Drill Bit #31 (MPN 43701) has a 0.1200-inch diameter, a 135° split point, and is made from TiCN-coated high-speed steel. It meets NAS 907 Type B standards for aerospace use. The bit is designed for precision drilling in demanding materials.
Where to buy CHICAGO-LATROBE drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE drill bits worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the #31 bit (MPN 43701) or other NAS-spec tooling.
How to select the right CHICAGO-LATROBE drill bit for aerospace work?
Select a bit that meets NAS 907 Type B specifications, like the #31 (0.1200-inch) with a 135° split point and TiCN coating. The split point reduces walking on curved surfaces, and the coating improves heat resistance. For aerospace alloys, ensure the bit is high-speed steel and matches your required hole tolerance.
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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.















