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The XTRWELD 45V42 is a standard small-style TIG gas lens designed for use with 9 and 20 series TIG torches. A gas lens replaces the standard collet body in a TIG torch assembly, using a mesh screen to produce a laminar shielding gas flow around the tungsten electrode. This improves arc stability and weld quality, especially on materials sensitive to atmospheric contamination. The 45V42 measures 0.94 inches in height and fits a 0.04 inch electrode diameter. It is marked with the electrode diameter for quick identification during setup. Welding professionals and fabricators working in light industrial or shop environments are the primary installers.
This gas lens is suited for TIG welding applications where consistent shielding gas coverage is critical, such as stainless steel, aluminum, and titanium work. The standard small form factor fits 9 and 20 series torch bodies, which are among the most common air-cooled TIG torch platforms in professional and shop use. These OEM-quality consumables are built to be compatible with all major brands of 9 and 20 series torches, making this a practical replacement or spare for technicians who maintain multiple torch setups.
Designed as an OEM-style replacement gas lens for 9 and 20 series TIG torches. Compatible with all major brands of these torch series accepting a 0.04 inch electrode diameter.
Installation is performed by a qualified welder or welding equipment technician. Before replacing the gas lens, turn off the shielding gas supply and ensure the torch is disconnected from the power source. The gas lens threads into the torch head in place of the standard collet body; do not overtighten, as this can damage the mesh screen or torch threads. Verify shielding gas flow rate after installation before resuming welding operations.
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