CHICAGO-LATROBE Jobber Length Drill Bit: #20, 135° Split Point, TiCN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit #20 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. It has a 0.1610-inch…
SKU 3G-OTH-189964
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Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit #20 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. It has a 0.1610-inch diameter (MPN 43690). 3G Electric interprets demand and delivers this genuine industrial tool across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.
Frequently Asked Questions
What is the CHICAGO-LATROBE Jobber Length Drill Bit #20 used for?
This drill bit is designed for aerospace and precision industrial drilling applications. Its 135° split point reduces walking and requires no center punch, while the TiCN coating extends tool life on high-strength materials. It meets NAS 907 Type B specifications for demanding manufacturing environments.
What are the specifications of the CHICAGO-LATROBE 43690 drill bit?
The CHICAGO-LATROBE 43690 is a #20 jobber length drill bit with a 0.1610 inch diameter, 135° split point, and TiCN-coated high-speed steel. It conforms to NAS 907 Type B standards, making it suitable for aerospace-grade drilling tasks requiring precision and durability.
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 43690 and other NAS-spec tooling.
How to select the right CHICAGO-LATROBE drill bit for aerospace work?
Select based on material hardness and hole tolerance. The #20 size (0.1610 inch) with TiCN coating suits stainless steel and titanium alloys. The 135° split point aids self-centering. Always verify NAS 907 Type B compliance for aerospace applications. 3G Electric can advise on suitable alternatives from the CHICAGO-LATROBE range.
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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.















