45V0204 - Weldcraft 45V0204 Large Gas Lens .020-.040 for 17/18/26 Torches (2-Pack)

Enhance Your TIG Precision with Weldcraft Large Gas Lenses

For professional welders seeking the highest quality shielding gas coverage, the Weldcraft 45V0204 Large Gas Lens is an essential upgrade for your TIG torch setup. Sold in a convenient package of 2, these collet bodies are engineered to fit standard 17, 18, and 26 series TIG torches. They are specifically designed to accommodate fine tungsten electrodes ranging from 0.020" (0.5mm) to 0.040" (1.0mm), making them perfect for intricate, low-amperage welding applications where precision is paramount.

The primary advantage of switching to a large diameter gas lens is the creation of a laminar gas flow. Unlike standard collet bodies that can create turbulent gas streams, the multi-layered mesh screens inside the 45V0204 straighten the flow of argon. This results in a coherent column of shielding gas that protects the molten weld pool more effectively from atmospheric contamination. This is particularly critical when welding reactive metals like stainless steel or titanium, where even slight oxidation can compromise the weld's integrity and appearance.

At Josef Gas, we understand that visibility is key to a perfect bead. By using the Weldcraft 45V0204, you can extend your tungsten electrode significantly further past the cup—often up to an inch or more depending on conditions—without losing shielding coverage. This extended stick-out allows you to see around corners and reach into deep crevices or tight V-grooves that would be impossible to weld with a standard nozzle setup. Whether you are working on aerospace components, precision instrumentation, or custom automotive fabrication, these genuine Weldcraft parts deliver the reliability you need.

Note: These are "Large Diameter" gas lenses and require compatible Large Diameter Alumina Cups (typically the 57N series) and appropriate insulators. They are physically larger than standard gas lenses to provide that superior, wide-area coverage.