10401542 - Tweco Spray Master MS450 MIG Gun - 450A, 15ft, Miller Style, 1/16 Wire

Legendary Performance for the Professional Welder

When the heat is on and the welds need to be perfect, professional welders turn to the Tweco Spray Master MS450. This isn't just another MIG gun; it's a workhorse built for the toughest jobs in the shop. If you are running heavy flux-cored or solid wires up to 1/16" diameter, this 450-amp gun gives you the power and reliability you need to lay down pounds of metal without overheating or jamming.

Comfort Meets Durability
Welding all day takes a toll on your body, which is why Tweco designed the Spray Master with ergonomics in mind. The handle fits naturally in your hand, reducing grip fatigue, while the 15-foot cable gives you the freedom to move around your workpiece. The conductor tube rotates 360 degrees, allowing you to get the perfect gun angle in tight corners or awkward positions without twisting your wrist.

Plug-and-Play Compatibility
Designed specifically for Miller welding machines, this gun features a direct Miller-style backend connection. No adapters are needed—just plug it in, tighten it down, and you are ready to weld. The gun arrives set up for 1/16" wire, saving you setup time on heavy structural jobs. Whether you are building bridges, repairing heavy equipment, or fabricating structural beams, the MS450 delivers a smooth, stable arc.

Easy Maintenance
Nobody likes downtime. The Spray Master MS450 uses standard Tweco consumables that are easy to find and quick to change. The simplified design means fewer parts to break and easier repairs if you ever cut a cable. Trust the gun that has defined the industry standard for decades—trust the Tweco Spray Master.