10401861 - Tweco Spray Master V450 MIG Gun, 25ft, Miller Style, 1/16 Wire

Reliable Power and Reach for Heavy Fabrication

If you are pushing heavy wire all day, you need a gun that can take the heat without melting down or wearing you out. The Tweco Spray Master V-Series 400 Amp MIG gun is built exactly for that purpose. This model (SMV425M116) comes with a massive 25-foot lead, giving you the freedom to weld around large trailers, structural beams, or heavy machinery without dragging your feeder everywhere you go. It connects directly to your Miller wire feeder, so you can plug it in and get to work immediately.

The biggest game-changer with this gun is the Velocity consumable system. We've all struggled with contact tips that fuse to the diffuser or strip their threads when you're in a hurry. The Velocity tips drop right in—no threads to mess up. They are held in place by the nozzle, which means changing a tip takes seconds, not minutes. Because the design uses more solid copper and fewer connections, the electricity flows smoother and the heat dissipates faster. You get a smoother arc, less spatter, and your consumables last way longer, saving you trips to the tool crib.

Comfort is key when you're under the hood for eight hours. The Spray Master handle is famous for its comfortable grip and balance. Even with the long 25-foot cable, the strain relief system helps balance the weight so you aren't fighting the gun. The trigger is responsive and durable, designed to withstand thousands of cycles. This specific setup is ready to run 1/16" wire, perfect for those high-deposition jobs where you need to lay down a lot of metal fast. Whether you are in a shipyard, a railcar plant, or a general fab shop, this gun gives you the reliability of the classic Spray Master with the modern performance of Velocity technology.

Stop fighting with overheating guns and seized tips. Upgrade to the Tweco Spray Master V-Series and experience the difference that better engineering makes in your daily weld. It’s tough, it’s cool-running, and it’s built to help you get the job done right.