|
Hi James. Hi-freq is useful but certainly not required. I've welded almost
my entire sub with TIG and although I have a Hi-freq on my machine, I rarely use
it.
I'm welding everything from 3/4 inch to 20 gage.
Scratch or touch makes very little difference. I would suggest just buying
an inexpensive TIG torch, clamp it onto the arc-rod stinger, and start burning.
If you've already got the flow meter, $75 to $80 and you're in business. I've
always found TIG to be the easiest. I taught my youngest daughter to do it. Took
about an hour and she was just welding away. Frank D.
|