10N2M - Weldcraft 10N2M 2.0mm TIG Collet for 17/18/26 Torches

Precision TIG Consumable for Metric Applications

The Weldcraft 10N2M Collet is a specialized consumable component designed to facilitate the use of 2.0mm tungsten electrodes within standard TIG welding setups. Engineered to fit the widely utilized 17, 18, and 26 series TIG torches, this collet bridges the gap between standard imperial torch bodies and specific metric electrode requirements. In the Gas Tungsten Arc Welding (GTAW) process, the collet plays a critical role in current transfer; it is the primary contact point where electrical energy is transferred from the torch body to the tungsten electrode. Consequently, the dimensional accuracy and material quality of the collet are paramount for maintaining a stable arc and preventing internal arcing that can damage the torch head.

Constructed from a high-grade copper alloy, the 10N2M offers excellent thermal and electrical conductivity. This material choice ensures that the collet can withstand the resistive heating generated at the contact points without softening or deforming prematurely. A deformed collet is a common cause of arc instability, as it fails to maintain uniform pressure on the tungsten, leading to fluctuating voltage and potential contamination. By utilizing genuine Weldcraft parts, operators ensure that the internal geometry of the collet matches the collet body and back cap perfectly, creating a seamless conductive path.

This specific SKU, the 10N2M, is distinct from standard imperial sizes such as the 5/64" (1.98mm) or 3/32" (2.4mm) collets. While 5/64" is dimensionally close to 2.0mm, using the incorrect collet size can result in poor gripping force or difficulty in inserting the electrode. The 10N2M is precision-bored to exactly 2.0mm, accommodating metric tungsten often found in European equipment specifications or specific aerospace welding procedures. Proper maintenance of the torch assembly involves regular inspection of the collet for signs of twisting, elongation, or arc burns. Replacing the collet at the first sign of wear is a cost-effective maintenance strategy that preserves the longevity of the more expensive torch body and ensures high-quality weld deposits.

Industrial procurement specialists should note that this item is compatible with both air-cooled (WP-17, WP-26) and water-cooled (WP-18) systems, making it a versatile inventory item for shops running mixed equipment. It integrates seamlessly with standard collet bodies and gas lenses designed for the 10N series, ensuring that gas coverage and laminar flow are not compromised by mismatched internal components.