MIG Spool Gun SM300 Series

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The SM300 Series Spool Gun is purpose-built to feed wires that are challenging for standard MIG guns — making it the go-to solution for aluminum, stainless steel, brazing, and flux -cored wires. Designed for wires measuring 0.030", 0.035", and 0.040", this spool gun provides consistent, reliable performance when precision feeding is required — especially for longer cable lengths exceeding 15 feet or when using thin solid wires (0.023"–0.030"). Rated at 230 amps, the SM300 is a lightweight, well-balanced, and easy-to-set-up tool with a dual-groove drive roll system, allowing for smooth and dependable aluminum wire feeding. It is compatible with a wide range of CV power sources and engine-driven welders. Its smart design reduces downtime and enhances productivity by offering quick access to the drive rolls without disassembling the gun. Show more