Mig Wires A18-grade copper coated double-deoxidised G3Si1 or SG2 mild steel MIG wire for welding unalloyed and low-alloyed mild and medium tensile steels. it can be used with both argon/co2 mixed gas or CO2. Precision layer-wound with a high-quality copper finish for improved feeding. Suitable for use in general fabrication, construction, tanks and boilers, sheet metal, agricultural, car body repair and maintenance applications Many consumable parts used with DIY mig welding machines are similar in manufacture and branded by many different suppliers such as SIP, Parweld, Draper, Esab, Sealey and many others, some supplies such as Parweld, Kemppi manufacture there own mig torches which in general are more specialist types. Mig Wires Contact tips generally M6 x 25mm or M5 x 18mm long, gas nozzles generally 38mm or 45mm long M8 thread and 53mm long 12m bore push on , liners plastic normally black or metal which are colour coded blue 0.6mm to 0.9mm wires and red 0.8mm to 1.2mmm wires the come in 3, 4 or 5metre in length, these are mass produced and branded by suppliers of machines as there own.