KP2029-4B1 - Lincoln Electric 3/32" TIG Collet for PTA-9/PTA-20 Torches

Genuine Lincoln Electric Precision TIG Collet

The Lincoln Electric KP2029-4B1 is a high-performance 3/32-inch (2.4 mm) collet designed specifically for the PTA-9 and PTA-20 series TIG torches. In the delicate art of TIG welding, the connection between the power source and the tungsten electrode is critical. This collet serves as the primary contact point, transferring welding current to the electrode while holding it firmly in place. Manufactured to Lincoln Electric's exacting standards, this component ensures that your tungsten remains centered and secure, minimizing vibration and arc wander that can compromise weld quality.

Constructed from high-grade copper alloy, the KP2029-4B1 offers exceptional thermal and electrical conductivity. This material choice is vital for preventing overheating within the torch head, which can lead to premature failure of the collet body or the torch itself. The precision machining of the collet slots allows for uniform compression around the tungsten when the back cap is tightened. This uniform grip is essential not only for electrical transfer but also for allowing the welder to easily adjust the stick-out length of the electrode without the collet binding or seizing inside the torch body.

Using genuine Lincoln Electric consumables like the KP2029-4B1 guarantees compatibility and performance. While generic alternatives exist, they often lack the dimensional accuracy required for a perfect seat within the collet body. A loose or poorly fitting collet can cause arcing inside the torch, leading to expensive repairs. Whether you are welding thin gauge aluminum or stainless steel, relying on authentic Lincoln parts ensures that your equipment operates at peak efficiency, delivering the smooth, stable arc that professional fabricators demand.

This collet is compatible with a wide range of air-cooled and water-cooled torches in the 9 and 20 series families. It is an indispensable part of any TIG welder's inventory, ensuring that downtime is minimized during routine maintenance or tungsten changes. By maintaining a fresh, un-deformed collet in your torch assembly, you ensure consistent gas coverage and electrical performance, resulting in cleaner, stronger welds.