13N26 - 13N26 TIG Collet Body .040" (1.0mm) for 9/20 Series Torches - 5 Pack

Technical Overview of the 13N26 Collet Body

The 13N26 Collet Body is a fundamental component in the Gas Tungsten Arc Welding (GTAW) process, specifically designed to accommodate .040-inch (1.0mm) tungsten electrodes. This component serves as the primary interface between the TIG torch head and the collet, playing a dual role in both electrical conductivity and mechanical stability. Manufactured from a high-grade copper alloy, this generic replacement part offers excellent thermal and electrical properties, ensuring that welding current is efficiently transferred from the power source to the tungsten electrode with minimal resistance heating.

Designed for compatibility with the industry-standard 9, 20, 22, and 25 series TIG torches, this collet body integrates seamlessly into both air-cooled and water-cooled setups. The internal geometry is precision-machined to mate perfectly with 13N21 collets, creating a secure clamping mechanism when the back cap is tightened. This action ensures the tungsten electrode remains centered and rigid during the welding operation, which is critical for maintaining arc stability and precision in automated or manual applications.

Unlike gas lens collet bodies, the standard 13N26 utilizes a conventional gas distribution method. It features drilled orifices that allow shielding gas to flow from the torch body into the ceramic nozzle (cup). While it does not provide the laminar flow characteristics of a gas lens, it is robust, less prone to clogging from spatter, and ideal for general-purpose welding applications where standard gas coverage is sufficient. The external threads are designed to accept standard alumina nozzles (13N series), making this a versatile part for a wide range of cup sizes.

Regular inspection of the collet body is recommended as part of a preventative maintenance schedule. Over time, thermal cycling can cause deformation or thread wear, and the internal seating surface can become pitted from micro-arcing if the collet is not properly tightened. Replacing the collet body when signs of wear appear ensures consistent gas flow and electrical contact, preventing issues such as wandering arcs or tungsten contamination.