CHICAGO-LATROBE Jobber Length Drill Bit: 21/64", 135° Split Point, TiCN-Coated HSS
The CHICAGO-LATROBE Jobber Length Drill Bit (MPN 42021) is a TiCN-coated high-speed steel drill bit with a 135° split point and fast spiral, designed for deep hole-drilling. It features a 21/64" diameter (0.3281 in)…
SKU 3G-OTH-193996
Need installation or engineering help?
Ask a question
Product Description
The CHICAGO-LATROBE Jobber Length Drill Bit (MPN 42021) is a TiCN-coated high-speed steel drill bit with a 135° split point and fast spiral, designed for deep hole-drilling. It features a 21/64" diameter (0.3281 in) and is supplied as a jobber-length tool. 3G Electric interprets your demand for precision tooling, sources this genuine OEM bit, and supports your machining operations across 14 industrial departments — with specialist depth in controls and pumps as an authorised distributor.
Frequently Asked Questions
What is the CHICAGO-LATROBE 42021 drill bit used for?
The CHICAGO-LATROBE 42021 is a jobber-length drill bit designed for deep hole-drilling in metal. Its 135° split point reduces walking and thrust, while the TiCN coating extends tool life on hard materials. Common applications include general machining, maintenance, and production work in industrial settings.
What are the specifications of the CHICAGO-LATROBE 42021 drill bit?
This CHICAGO-LATROBE bit has a 21/64" (0.3281") diameter, 135° split point, and TiCN-coated high-speed steel with a fast spiral flute design. It is a jobber-length bit for deep hole-drilling. The manufacturer part number is 42021.
Where to buy CHICAGO-LATROBE 42021 drill bits worldwide?
3G Electric supplies CHICAGO-LATROBE 42021 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 time. We source and deliver this item to any country.
How to select the right CHICAGO-LATROBE drill bit for deep hole-drilling?
For deep hole-drilling, choose a jobber-length bit with a 135° split point to reduce walking and a TiCN coating for heat resistance. The CHICAGO-LATROBE 42021 meets these criteria. Ensure the diameter matches your hole size and the flute length is sufficient for the depth required.
Used in
Common applications for CHICAGO-LATROBECHICAGO-LATROBE Products
3G Electric supplies CHICAGO-LATROBE high-speed steel jobber-length drill bits for deep hole-drilling. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















