10401931 - Tweco Classic 4 MIG Gun 400A 12ft Lincoln Connection 1/16 Wire

The Legend of the Shop Floor

If you've spent any time in a heavy fab shop, you know the Tweco Classic No. 4. It’s the gun that set the standard. This isn't a plastic toy; it's a 400-amp beast built to take a beating and keep on welding. This particular model is set up specifically for the guys running Lincoln feeders. It plugs right in—no adapters, no hassle. With a 12-foot lead, you've got enough slack to move around your jig or table without getting tangled up in coils of cable, but it's short enough to keep that wire feeding smooth and steady.

Out of the box, this gun is ready for the heavy stuff. It's lined and tipped for 1/16-inch wire, so if you're burning big flux-core or heavy solid wire, you're good to go. The handle feels solid in your hand—it's got that classic oval shape that doesn't slip, even when your gloves are greasy. The trigger action is crisp, and because it's air-cooled, you don't have to worry about busting a water line when you drag it across a piece of channel.

Maintenance is a breeze because it uses the consumables you can find anywhere: Tweco 14 tips and those slip-on nozzles we all know. If you do manage to cut the cable or smash the backend, the whole thing is field-repairable with basic hand tools. You don't need to send it out; you can fix it on the bench and get back to burning metal. When you need a gun that works as hard as you do, you grab a Classic 4.