KP2030-1B1 - Lincoln Electric 10N21 Style Collet .020" (5-Pack)

Precision TIG Welding with Lincoln Electric KP2030-1B1

When it comes to micro-TIG welding and high-precision fabrication, the smallest details make the biggest difference. The Lincoln Electric KP2030-1B1 Collet is specifically engineered for use with .020-inch (0.5 mm) tungsten electrodes, the standard size for extremely delicate welding tasks such as electronics repair, medical device fabrication, and thin-gauge sheet metal work. This collet is a critical component in the TIG torch assembly, responsible for physically securing the electrode and transferring the welding current from the torch body to the tungsten itself.

This product is manufactured to the industry-standard 10N21 specifications, making it universally compatible with a wide range of air-cooled and water-cooled TIG torches. Specifically, it fits the popular 9 Series (air-cooled) and 20 Series (water-cooled) torches, as well as the 25 Series. By adhering to strict manufacturing tolerances, Lincoln Electric ensures that this collet provides a consistent, concentric grip on the tungsten. This concentricity is vital for maintaining a stable arc; if a collet is poorly machined, the tungsten may sit off-center, leading to erratic arc starts and poor weld quality.

The KP2030-1B1 is crafted from a high-grade copper alloy. Copper is the material of choice for TIG collets due to its superior electrical conductivity and thermal properties. Efficient current transfer minimizes resistance heating within the torch head, protecting both the torch components and the welder's hand from excessive heat buildup. Furthermore, the durability of Lincoln's alloy helps the collet resist deformation under thermal cycling, although collets are consumables that should be replaced regularly to ensure peak performance.

This item is supplied as a pack of 5. Professional welders know that collets can wear out, twist, or become clogged with contaminants over time. Having a fresh pack on hand ensures that you can swap out a worn component immediately, preventing downtime in the middle of a critical job. Whether you are welding razor-thin stainless steel or delicate aluminum alloys, the Lincoln KP2030-1B1 provides the reliability required for professional results.