10401342 - Tweco Supra XT 400 Amp MIG Gun, 15ft, Miller Connection

Experience Superior Comfort and Power with the Tweco Supra XT 400

Welders know that the gun in their hand is their primary connection to the work. The Tweco Supra XT 400 MIG Gun is built to make that connection as comfortable and reliable as possible. Designed for serious fabrication, this 400-amp air-cooled torch combines Tweco's legendary durability with the ergonomic advancements of the Supra XT handle design. If you are running a Miller welder and need a gun that can take a beating while delivering smooth wire feed all day long, this is the tool for you.

Built for the Long Haul
The "SEHD" (Super Extra Heavy Duty) designation isn't just a label; it's a promise. The 15-foot cable features a rugged outer jacket that resists cuts, burns, and abrasion, common hazards on any shop floor. Inside, the coaxial copper stranding ensures that you get the full power of your machine at the arc, resulting in better penetration and cleaner welds. The strain relief systems at both the handle and the plug end are engineered to prevent kinking and wire feed issues, which are the number one killer of productivity.

Ergonomics That Matter
Welding at 400 amps generates heat and requires focus. The Supra XT handle is shaped to fit naturally in the hand, reducing grip fatigue during long passes. The trigger geometry provides positive feedback without requiring excessive force, allowing for precise control over your starts and stops. The ability to swivel the gooseneck means you can position the gun exactly where you need it, rather than contorting your body to get the right angle.

Hassle-Free Compatibility
This model comes ready to plug and play with your Miller wire feeder. No adapters or modifications are needed. Furthermore, because it uses standard Tweco consumables—the most widely available parts in the industry—you'll never be stuck waiting for a special order contact tip or nozzle. Whether you are welding thick structural beams or performing heavy equipment repairs, the Tweco Supra XT 400 gives you the confidence to lay down perfect beads shift after shift.