45V28 - Weldcraft 45V28 5/32" TIG Gas Lens Collet Body (2-Pack)

Precision Gas Shielding for Heavy-Duty TIG Applications

The Weldcraft 45V28 Gas Lens is a critical component for professional TIG welders seeking superior shielding gas performance when using heavy-amperage setups with 5/32-inch (4.0mm) tungsten electrodes. Unlike standard collet bodies which can create turbulent gas flow, this gas lens utilizes a precision-engineered multi-layer mesh screen to straighten the shielding gas stream. This transformation from turbulent to laminar flow is essential for maintaining a pristine weld pool, particularly when welding reactive metals or working in draftier shop environments where standard nozzles might fail to provide adequate protection.

One of the most significant technical benefits of the 45V28 is the ability to extend the tungsten electrode significantly further beyond the nozzle cup—often up to an inch or more depending on the gas flow rate and cup size. This extended stick-out capability provides the operator with unparalleled visibility of the arc and the weld puddle, which is crucial for precision work in tight corners, deep grooves, or complex geometries. By moving the nozzle further back from the workpiece, the welder gains better line-of-sight without compromising the integrity of the inert gas shield.

Designed specifically for the "3 Series" torches—which includes the widely used WP-17, WP-18, and WP-26 models—this component integrates seamlessly into existing torch setups. It replaces the standard collet body and requires a compatible gas lens nozzle (alumina cup) to function correctly. The 45V28 is built to the high manufacturing standards of Weldcraft (a Miller Electric brand), ensuring consistent threading, durable brass construction, and a mesh screen that resists rapid clogging or deterioration under heat. This pack contains two gas lenses, ensuring that professionals have a backup on hand for critical projects.

In industrial MRO environments, the use of a gas lens can also lead to gas savings. Because the laminar flow is more efficient and coherent, welders can often achieve the same level of protection with slightly lower flow rates compared to standard collet bodies, reducing long-term consumable costs while improving weld quality.