10401077 - Tweco Spray Master MS415 MIG Gun - 400A, 15ft, 1/16 Inch, Euro Connect

Legendary Performance for Heavy Welding

If you are burning heavy wire and need a gun that can take the heat, the Tweco Spray Master MS415 is built for you. Known among professional welders for its reliability, the Spray Master series lives up to its name by excelling in spray transfer modes where arc stability and heat management are critical. This 400-amp workhorse is air-cooled, meaning you get high-amperage performance without the hassle of maintaining water lines or coolers—just plug it in and weld.

The 15-foot lead gives you the freedom to reach the far end of a trailer or the top of a structural beam without dragging your feeder along. We know that feeding large wire can be a challenge, but this gun is pre-configured for 1/16-inch wire, ensuring that the liner and tip are ready to handle the heavier gauge right from the start. The result is smoother feeding, fewer birdnests, and a more consistent arc, even when you are pushing the machine to its limits.

One of the best things about this specific model is the Euro connection. If you've ever been frustrated by a gun that only fits one specific machine in the shop, you will appreciate the universality of the Euro plug. It allows you to hook this high-performance gun up to almost any machine with a Euro port, giving you a premium Tweco feel on whatever power source you happen to be using that day. The ergonomic handle is designed to fit comfortably in a gloved hand, reducing grip strain during those long passes.

When it comes time to swap out parts, you are covered. The Spray Master uses standard Tweco consumables that are likely already in your tool crib. Whether you are fabricating heavy equipment, repairing railcars, or welding structural steel, this gun delivers the comfort, durability, and performance you need to get the job done right.