CHICAGO-LATROBE Extension Tap: 5/8"-11 UNC, H11, 3 Flute, Plug Chamfer, High Speed Steel (MPN 313549)
The CHICAGO-LATROBE Extension Tap is a 5/8"-11 UNC spiral-point extension tap, type H11 with a plug chamfer, made of high-speed steel and featuring 3 flutes (MPN 313549). 3G Electric sources this genuine industrial…
SKU 3G-OTH-313632
Need installation or engineering help?
Ask a question
Product Description
The CHICAGO-LATROBE Extension Tap is a 5/8"-11 UNC spiral-point extension tap, type H11 with a plug chamfer, made of high-speed steel and featuring 3 flutes (MPN 313549). 3G Electric sources this genuine industrial cutting tool across 14 departments, with specialist expertise in combustion, pumps, and controls ensuring accurate sourcing and support.
Frequently Asked Questions
What is a CHICAGO-LATROBE extension tap used for?
A CHICAGO-LATROBE extension tap is used to cut internal threads in deep or hard-to-reach holes. The extended shank allows access where standard taps cannot reach, making it ideal for maintenance, repair, and production work on industrial equipment, machinery, and structural components.
What are the specifications of the CHICAGO-LATROBE extension tap 313549?
The CHICAGO-LATROBE extension tap model 313549 has a thread size of 5/8"-11 UNC, an H11 tolerance, 3 flutes, a plug chamfer, and is made of high-speed steel. It is a spiral-point extension tap designed for through-hole threading in ferrous and non-ferrous materials.
Where to buy CHICAGO-LATROBE extension taps worldwide?
You can source CHICAGO-LATROBE extension 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 time on the 313549 model.
How to select the right CHICAGO-LATROBE extension tap?
Select a CHICAGO-LATROBE extension tap based on thread size, material, and hole depth. For the 313549 model, use it for 5/8"-11 UNC threads in through-holes. Match the tap's H11 tolerance to your thread class requirement. Consult a tap selection guide for material-specific speeds and feeds.
Used in
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.















