125C332-45 - Weldcraft 45-Degree Micro TIG Chuck 3/32" (2.4mm) for W-125 Torches

Precision Component for Micro TIG Applications

The Weldcraft 125C332-45 45-Degree Chuck is a specialized consumable designed exclusively for the W-125 Micro TIG torch series (formerly known as the MT-125). This component is critical for operators performing high-precision welding tasks in the aerospace, tool and die, and automotive industries. Unlike standard TIG torches that utilize a collet and collet body system, the Micro TIG system employs interchangeable chucks to hold the tungsten electrode and define the torch angle. This specific model features a 45-degree bend, providing the necessary geometry to access tight corners, internal bores, and complex assemblies where a straight or 90-degree head would be obstructed.

Engineered to accommodate 3/32-inch (2.4 mm) tungsten electrodes, this chuck is manufactured from high-grade copper alloy. This material selection is paramount for ensuring maximum electrical conductivity and efficient heat dissipation, which are vital when working with the fine amperages and delicate heat control required in micro-welding. The threaded base ensures a secure mechanical connection to the torch body, preventing current leakage and ensuring a stable arc start. As a genuine Weldcraft product, manufactured by Miller Electric, the 125C332-45 meets strict OEM specifications for tolerance and durability.

The modular nature of the W-125 system allows for rapid changeovers between different chuck angles and tungsten sizes. This 45-degree variant is an essential part of a complete Micro TIG toolkit, bridging the gap between standard straight nozzles and 90-degree options. It is compatible with standard W-125 nozzle cups and insulators, ensuring seamless integration into existing setups.