125C116 - Weldcraft MT-125 180-Degree Chuck for 1/16" Tungsten

Genuine Replacement for MT-125 Torches

Keep your Micro TIG setup running at peak performance with the Weldcraft 125C116 1/16" Electrode Chuck. If you rely on the Weldcraft MT-125 torch for your fine detail work, you know that every part of the torch head matters. This chuck is the specific piece designed to hold your 1/16-inch (1.6mm) tungsten electrode securely in the 180-degree (straight) position. Over time, the heat and mechanical stress of tightening and loosening can wear out your chucks, leading to slipping tungsten, poor electrical contact, and frustrating arc starts. Replacing your worn chuck with this genuine Weldcraft part is a quick and easy way to restore the crisp, reliable control you need.

The 180-degree design gives you a straight-on approach to your weld, similar to holding a soldering iron or a pen. This is often the preferred setup for bench work, tool and die repair, or reaching into deep bores where an angled head just won't fit. Because this is an OEM part from Weldcraft (Miller), you don't have to worry about cross-threading or loose fits. It screws in smoothly and bites down on the tungsten firmly, ensuring that the current flows directly to the tip without arcing inside the handle. This protects your expensive torch body from heat damage and ensures a stable arc for those critical welds.

Micro TIG welding is all about control, and a loose electrode is a welder's nightmare. Whether you are welding stainless steel sensors, titanium medical parts, or aluminum molds, you need your tungsten to stay exactly where you set it. The 125C116 is built to handle the thermal cycles of TIG welding without losing its spring tension. It is sized specifically for 1/16-inch electrodes, which is a versatile size for the amperage range of the MT-125 torch.

Don't let a five-dollar part ruin a five-thousand-dollar part. Keep a few of these chucks in your consumables kit so you are never caught off guard. When you are in the middle of a tricky repair, the last thing you want is to be fighting your equipment. With the Weldcraft 125C116, you get the peace of mind that comes with using factory-specified parts, allowing you to focus entirely on laying down the perfect bead.