The H&S Autoshot Double-Pulse Synergic Multi-Purpose MIG/TIG/Stick Welder, No. HSM250, offers three MIG wire feed and torch drives with synergic, synergic single-pulse or synergic double-pulse programs for steel, aluminum and silicone bronze welding with wire sizes from 0.023" to 0.045". The unit also features lift-arc DC TIG and electrode welding capability. With 250 amps of power, it is capable of welding all steel and aluminum alloys from #20GA to 1/2", the company says. Additionally, it offers twin cylinder racks and dual gas inputs for mixed and 100 percent gases. These programs are easily selected by the operator inputting material type, wire size, type of gas and material thickness on a drop-down display.