CHICAGO-LATROBE Spiral Point Tap: 3/8"-24 UNF, H3 / 2B, 3 Flute, Plug Chamfer (MPN 330121)
SKU 3G-OTH-215310
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Frequently Asked Questions
What is the CHICAGO-LATROBE Spiral Point Tap 330121 used for?
The CHICAGO-LATROBE Spiral Point Tap 330121 is used for threading through-holes in metal, steel, and alloys. Its spiral-point design pushes chips forward, preventing clogging. Common applications include automotive, aerospace, and general manufacturing where precise UNF threads are required.
What are the specifications of the CHICAGO-LATROBE 330121 tap?
The CHICAGO-LATROBE 330121 is a 3/8"-24 UNF spiral point tap with H3 tolerance and 2B class fit. It has 3 flutes and a plug chamfer. The manufacturer part number is 330121. This tap is designed for general purpose threading in ferrous and non-ferrous materials.
Where to buy CHICAGO-LATROBE taps in worldwide?
You can source CHICAGO-LATROBE taps worldwide through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead times on the 330121 spiral point tap.
How to select the correct CHICAGO-LATROBE tap for UNF threads?
To select the correct CHICAGO-LATROBE tap, match the thread size and pitch (e.g., 3/8"-24 UNF) to your application. Use a spiral point tap for through-holes and a spiral flute tap for blind holes. Verify the chamfer type (plug, bottoming, or taper) based on hole depth. Always consult the manufacturer's recommendations for material-specific speeds and feeds.
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3G Electric supplies CHICAGO-LATROBE general purpose spiral-point taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















