125C332-90 - Weldcraft 90-Degree Chuck, 3/32 in. (2.4 mm) for W-125 Micro TIG

Precision Micro TIG Welding with the Weldcraft 90-Degree Chuck

The Weldcraft 90-Degree Chuck (Part Number 125C332-90) is a specialized consumable designed exclusively for the W-125 Micro TIG torch series (formerly known as the Weldcraft MT-125). In the world of precision fabrication, accessing tight corners, internal bores, and complex geometries often requires more than a standard straight torch setup. This 90-degree chuck transforms the capability of your Micro TIG torch by orienting the tungsten electrode at a right angle to the torch body, allowing welders to execute high-quality welds in spaces that would otherwise be impossible to reach.

Engineered to accommodate 3/32-inch (2.4mm) tungsten electrodes, this chuck is robust enough to handle the upper amperage limits of the micro torch series while maintaining the delicate control required for thin-gauge materials. The 3/32-inch size is particularly useful for applications requiring slightly higher heat input or better electrode life compared to smaller diameters. The chuck acts as both the gripping mechanism for the electrode and the primary point of electrical contact, ensuring that current is transferred efficiently from the power cable to the tungsten tip. Poor contact in micro welding can lead to arc instability and wandering, which is why using genuine Weldcraft components is critical for maintaining the precision standards of the W-125 system.

Constructed from high-grade conductive alloys, the 125C332-90 chuck resists heat deformation and oxidation, ensuring a long service life even under the thermal stress of continuous welding. It threads securely into the 90-degree head assembly of the W-125 torch, providing a rigid hold on the tungsten that prevents slippage or vibration during operation. Whether you are repairing molds, fabricating aerospace components, or working on intricate automotive parts, this chuck provides the reliability and geometric advantage needed for success.

Installation is straightforward, requiring the user to simply insert the tungsten and tighten the chuck into the torch head. Regular inspection of the chuck is recommended to ensure the threads remain clean and the gripping surface is free from arcing damage, which guarantees optimal performance for every weld.