heres a rookie question why do you need a mig and a tig, ive never used a tig (thats the one with the pedle to control the aperage right?) ive only use a mig and good old steel welding with a set of torches and a rod or a coathanger (dont worry no coathanger on my bike or anything that involves a safety concern) srry to ask such questions im just interested in welding and unfortunetly i hardly come across it and im a mechanic i think its sad how so many mechanics cant weld (at least here in brampton and im reffering to the younger generation) but i love it i dont know what it is about it but ever since i could remember ive jumped on any opportunity i got to weld.