A welder multi-tool is provided including a sleeve having a first leg portion, a second leg portion, and a bridge portion interconnecting the first leg portion and the second leg portion. The sleeve extends along a central axis passing through the bridge portion and defines a space between the leg portions. A single axle is attached to the sleeve and spans, along an axis, the space defined between the leg portions. The axis of the axle does not intersect the central axis of the sleeve. The welder multi-tool further includes a plurality of tools rotatably attached to the axle. Each tool axis does not intersect the axis of the axle. The plurality of tools includes a fillet gauge tool and a thickness gauge tool. A further example of the welder multi-tool includes a fillet gauge tool, a thickness gauge tool, a soap stone, and a welding nozzle cleaner.