CHICAGO-LATROBE Extension Tap: 5/16"-18 UNC, H11, 3 Flute, Plug Chamfer (MPN 313600)
SKU 3G-OTH-313619
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Frequently Asked Questions
What is a CHICAGO-LATROBE extension tap used for?
A CHICAGO-LATROBE extension tap is used to cut internal threads in hard-to-reach or deep-hole applications. The extended shank allows threading in recessed areas, blind holes, or where standard taps cannot reach, common in machining, automotive, and industrial maintenance.
What are the specifications of the CHICAGO-LATROBE 313600 extension tap?
The CHICAGO-LATROBE 313600 extension tap has a thread size of 5/16"-18 UNC, H11 tolerance, 3 flutes, and a plug chamfer. It is a spiral-point extension tap designed for through-hole threading, with the MPN 313600 and SKU 449R97.
Where to buy CHICAGO-LATROBE extension taps worldwide?
3G Electric supplies CHICAGO-LATROBE extension taps worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to source the 313600 or other CHICAGO-LATROBE tooling for your operations.
How to select the right extension tap for deep-hole threading?
Select an extension tap like the CHICAGO-LATROBE 313600 based on thread size (5/16"-18 UNC), material hardness (H11 tolerance), and chamfer type (plug for through-holes). Ensure shank length reaches the threading depth. For blind holes, consider bottoming chamfer taps instead.
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Common applications for CHICAGO-LATROBECHICAGO-LATROBE Products
3G Electric supplies CHICAGO-LATROBE spiral-point extension taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















