Tregaskiss 404-20 Tough Lock Diffuser The Tregaskiss 404-20 Retaining Head is a heavy-duty (HD), single-taper component of the TOUGH LOCK® consumable system. This retaining head is designed to be a durable part of your MIG welding gun's front end. It's compatible with both semi-automatic MIG guns and various conversion series for other gun brands. Tregaskiss Tough Gun Heavy Duty Gas Diffuser. For use with 403-X and 603-X contact tips Enhanced Heat Dissipation: When mated with TOUGH LOCK® contact tips, it minimizes contact tip temperature by increasing surface contact, which in turn maximizes heat dissipation. Durable Construction: Made from brass, this retaining head is built to withstand heavy-duty use. Broad Compatibility: This retaining head is used on a variety of Tregaskiss® and Bernard® MIG guns, as well as on legacy Bernard and Tweco necks with a 9/16-18 thread. Package of 25
