406488 - Weldcraft 3-Series Collet Body 5/32" (4.0mm) - 5 Pack

Reliable Performance for Heavy TIG Applications

When you are TIG welding thick aluminum or heavy steel plate, you need to step up to a 5/32-inch tungsten to handle the heat. The Weldcraft 406488 Collet Body is the part that makes that possible. Designed to fit the most common torches in the industry—the 17, 18, and 26 series—this collet body is the workhorse of heavy fabrication. Whether you are running a water-cooled rig in a production shop or a heavy-duty air-cooled torch in the field, these collet bodies provide the secure connection you need to keep your arc stable and your welds clean.

We know that consumables wear out, especially when you are pushing high amps. Over time, the threads can get stripped, or the copper can deform from heat cycles, leading to poor contact and a wandering arc. That is why this comes in a convenient 5-pack. Swapping out a worn collet body is one of the cheapest and easiest ways to troubleshoot an erratic arc. These genuine Weldcraft parts are machined to tight tolerances, meaning your tungsten won't slip, and your gas cup will thread on smoothly every time.

Using the right parts for your setup is crucial. This 406488 body is specifically for 5/32" (4.0mm) electrodes. It pairs with a standard collet and a standard alumina cup. It does not contain a gas lens screen, making it rugged and less prone to clogging from spatter if you accidentally dip your tungsten. It is the straightforward, reliable choice for welders who need to lay down serious metal without fussing with delicate torch parts. Keep a pack in your toolbox so you are never stuck waiting on parts when a big job lands on your table.