I'm a MIG noobie and I just bought a used Pro-MIG 135. One nozzle is copper and the other is plastic. Which one is for FCAW?
Reply:The bigger hollow copper nozzle use is for use with gas (MIG) but some folks leave it on when doing flux core.The plastic one is for use with flux core, as it allows you to get into tighter areas than the copper one.Rick V 1 Airco Heliwelder 3A/DDR3 CTC 70/90 amp Stick/Tig Inverters in Parallel1 Lincoln MIG PAK 151 Oxy-Acet