MIG Function:0.6/0.8/1.0mm size flux cored/solid cored wire suitable to be used with this machine, carrying 1KG/5KG (5KG is not included) roll wire perfectly, 100% duty cycle can be reached when using 0.8mm wire;Welding thickness range:0.8-8.0mm. Mixed Gas MIG: select MIG function and 0.8mm to weld with mixed gas (use the gas proportioner to mix 82% Argon with 18% CO2) which makes less spatter, performs a better welding.