Features Synergic Controlled & Manual Adjustable MIG function, very easy and simple operation. 4 Functions in 1 of Gas MIG /Gasless MIG / Lift TIG / Stick Aluminum MIG welding available, spool gun compatible. Can take up to 0.9mm(.035") MIG solid wire(Gas MIG) and 0.9mm(.035") MIG FLux wire(Gasless MIG) Apply to D100/D200 rolls (<10lbs) of MIG wire Suitable for welding carbon steel and aluminum. Function Choosable MIG Setting Synergic MIG Setting-provides communication between the power source, feeder, and torch--allows for automatic change of the voltage & wire feeding speed by adjusting the amperage or thicknesses.  Easy works with new welders or users. Manual MIG Setting--meet the need of an experienced and professional welder by adjusting the voltage & wire feeding speed separately. Gas MIG Welding Can handle 2 lb and 10 lb rolls of wire. Shield gas:100% CO2 for steel, 25% CO2, 75% Argon for carbon steel, 2% CO2, 98% Argon for stainless steel and 100% Argon for aluminum. Recommended to use .030" (0.8mm) &.035" (0.9mm) ER70S-6 carbon steel welding wire; .035"&.045" ER4043 or ER5356 aluminum welding wire. Gasless MIG Welding Can handle 2 lb and 10 lb rolls of wire. Suitable for carbon steel welding. Recommended to use .030" (0.8mm) &.035" (0.9mm) E71T flux core welding wire. The default setting is .035" (0.9mm) in Synergic MIG mode. DC Stick Welding The YESWELDER MIG-205DS-B can easily run stick electrodes. A stinger and ground clamp is included with your machine for this process. This unit can weld with 7018/6011 electrodes up to 5/32" Smooth welding and fast burning. Capable of welding with 7018/6011 electrodes. Electrode up to 1/8"@110V, 5/32"@220V. Apply to 9/64" thick carbon steel @110V, 13/64"@220V. Lift TIG Welding Capable of Lift TIG welding. Accessories for TIG welding-TIG torch and tungsten not included. Recommend using YesWelder WP-17V-35 TIG torch. What's Included: 10ft MIG Gun(with a Graphene liner) 10ft Electrode holder with cable 10ft ground clamp with cable 1 Additional .030" & .035" contact tip 220-110V Power Adapter W-type .030”/.035” roller driver V-type .023”/.030” roller driver (.030”/.035” built-in ) U-type .035"/.045” roll driver User manual