17GL040 - Weldcraft 17GL040 Stubby Gas Lens Kit for 17/18/26 Torches

Precision Gas Coverage for TIG Applications

The Miller Weldcraft 17GL040 Stubby Gas Lens is a specialized TIG welding consumable designed to optimize shielding gas distribution for 0.040-inch (1.0mm) tungsten electrodes. Engineered for use with 17, 18, and 26 series TIG torches, this component replaces the standard collet body to provide a "stubby" configuration. By reducing the overall length of the torch head, operators gain improved access to confined spaces and complex joint geometries without sacrificing amperage capacity or torch performance.

Technically, the gas lens utilizes a multi-layer mesh screen to convert turbulent gas flow from the torch into a coherent, laminar stream. This laminar flow significantly improves shielding efficiency, reducing the risk of atmospheric contamination and oxidation in the weld pool. Furthermore, the stable gas column allows for a greater tungsten stick-out—often up to an inch or more—providing superior visibility of the arc and puddle. This is particularly critical when welding reactive metals or high-specification alloys where porosity and inclusion defects must be minimized.

The 17GL040 is manufactured to precise tolerances, ensuring concentricity with the tungsten electrode and consistent electrical conductivity. As a genuine Weldcraft component, it integrates seamlessly with existing torch setups, though it requires compatible stubby collets and insulators for proper assembly. This package contains two gas lenses, ensuring a ready replacement for continuous industrial operations.