54N20 - 5/32" (4.0mm) TIG Collet for 17/18/26 Series Torches - 5 Pack

Precision TIG Collet for 17, 18, and 26 Series Torches

The 54N20 5/32" (4.0mm) Collet is a fundamental component for welders utilizing the industry-standard 17, 18, and 26 series TIG torches. Designed to meet the rigorous demands of precision welding, this collet ensures a secure mechanical grip on 5/32-inch tungsten electrodes, facilitating consistent electrical contact and efficient current transfer. In the TIG welding process, the collet acts as the primary interface between the torch power cable and the electrode; therefore, dimensional accuracy and material quality are paramount to maintaining a stable arc and preventing overheating.

Manufactured from a high-grade copper alloy, this generic replacement part offers excellent thermal and electrical conductivity. It is engineered to withstand the thermal cycling inherent in TIG welding without premature deformation or twisting. A compromised collet can lead to poor arc starts, wandering arcs, and reduced torch life due to resistive heating. By replacing worn collets with this reliable 54N20 unit, operators can maintain the high performance expected from their WP-17 (air-cooled), WP-18 (water-cooled), or WP-26 (air-cooled) torch setups.

This package contains five collets, providing a necessary stock for production environments where downtime must be minimized. The 54N20 is compatible with standard collet bodies as well as gas lens collet bodies designed for the 3-series (17/18/26) front-end parts. Whether you are welding aluminum with AC or steel with DC, ensuring your electrode is centered and tightly secured is the first step toward a defect-free weld. This product serves as a direct, high-quality alternative to OEM parts, delivering professional performance at a competitive price point.

Key Technical Features:

• Standard Fitment: Universally compatible with all major brands of 17, 18, and 26 series TIG torches.
• Optimal Conductivity: Copper alloy construction minimizes voltage drop and heat buildup.
• Precision Machining: Ensures the tungsten electrode is held concentrically for accurate arc placement.
• Durability: Resists twisting and heat damage under normal operating conditions.