KP2033-5B1 - Lincoln Electric 1/8" Gas Lens Collet Body for 17/18/26 Torches

Precision Shielding for High-Quality TIG Welding

The Lincoln Electric KP2033-5B1 Gas Lens Collet Body is an essential upgrade for professional TIG welders seeking superior arc stability and gas coverage. Designed specifically for 1/8-inch (3.2 mm) tungsten electrodes, this component replaces the standard collet body in PTA-17, PTA-18, and PTA-26 series torches (as well as Magnum PRO equivalents). The primary engineering advantage of this gas lens is its ability to transform the turbulent flow of shielding gas into a coherent, laminar stream. This is achieved through a precision-integrated multi-layer stainless steel mesh screen that organizes the gas molecules before they exit the nozzle.

By eliminating turbulence, the KP2033-5B1 ensures that the weld pool is protected by a solid column of Argon (or other shielding gases), significantly reducing the risk of atmospheric contamination such as oxidation or porosity. This is particularly critical when working with reactive metals like stainless steel, titanium, or aluminum, where even minor air entrainment can compromise the metallurgical integrity of the joint. Furthermore, the improved gas column stiffness allows the operator to extend the tungsten electrode further past the cup—often up to an inch or more—without losing shielding effectiveness. This feature provides unparalleled visibility and access into tight corners, fillets, and complex geometries that would be impossible to weld with a standard setup.

Manufactured to Lincoln Electric's rigorous standards, this gas lens features a robust brass body for excellent thermal and electrical conductivity. It is designed to withstand the high heat cycles associated with TIG welding while maintaining its structural integrity. Whether you are performing critical aerospace welds or general fabrication, integrating the KP2033-5B1 into your torch assembly is a cost-effective method to instantly improve weld appearance and quality.