KP4750-332 - Lincoln KP4750-332 3/32-inch TIG Collet (3-Pack) for 17/18/26 Torches

High-Performance TIG Torch Consumables

The Lincoln Electric KP4750-332 Caliber™ Collet is a precision-engineered consumable designed to facilitate optimal performance in Gas Tungsten Arc Welding (GTAW) operations. Specifically manufactured to accommodate 3/32-inch (2.4 mm) tungsten electrodes, this component plays a vital role in the electrical circuit of the welding torch. By ensuring a secure mechanical grip on the tungsten, the collet guarantees consistent current transfer from the power source to the arc, which is essential for maintaining arc stability and weld quality. This product is the official successor to the legacy Lincoln part number KP2030-4B1, incorporating modern manufacturing standards for improved durability and fit.

Designed for broad compatibility, the KP4750-332 fits all industry-standard 17, 18, and 26 series TIG torches. This includes the popular air-cooled 17 and 26 series models used in general fabrication, as well as the water-cooled 18 series torches favored for higher amperage applications. The collet is constructed from a high-purity copper alloy, selected for its superior thermal conductivity. This material choice helps dissipate the intense heat generated during the welding process, thereby prolonging the lifespan of the consumable and preventing premature deformation or "twisting" that can occur with inferior materials.

In industrial environments, consumable management is critical to operational efficiency. Over time, collets undergo thermal cycling that can lead to fatigue and reduced gripping power. A compromised collet can result in poor arc starts, wandering arcs, and even damage to the collet body or torch head. Lincoln Electric supplies these collets in a package of 3, allowing maintenance teams and fabricators to keep essential spares on hand. Regular inspection and replacement of the collet assembly are recommended to ensure the welding equipment operates within its specified parameters. By choosing genuine Lincoln Electric Caliber™ parts, operators ensure that their equipment maintains the reliability and precision associated with the brand.

Whether utilized in aerospace, automotive, or heavy industrial piping applications, the integrity of the torch consumables directly impacts the final weld result. The KP4750-332 provides the mechanical precision required to hold the electrode centered and secure, allowing the welder to focus on puddle control and bead appearance without fighting equipment inconsistencies.