Tweco, an ESAB brand, introduced the Fusion Pro 450, a water-cooled MIG gun designed for running wires from 0.035-in. to 1/16-in. diameter in medium to heavy-duty industrial fabrication, maintenance and repair applications. Using mixed gas, the gun is rated at 450 amps at 100 percent duty cycle; with CO2 shielding gas, it is rated at 500 amps at 100 percent duty cycle. The gun uses easy-to-service front-end consumables and features an insulated torch neck and slip-on nozzle for easy handling. Guns come with 10-ft. or 15-ft. cables.