I got an inverter stick welder made by them. It does pretty good on a 110V outlet with an 1/8" 6011 at about 95-100 amps. Not quite as hot as the Lincoln inverter I bought later, but will get the job done. It's great for portability.
I've learned the hand tightened lesson the hard way. The valve seats on my torch handle need machining. A healthy fear of the acetylene makes me tighten the valve too much. Now I have to crank it good to get the fire to go out.
This one from Eastwood claims 500 amps. Probably a function of how big the bolt is.
https://www.eastwood.com/4-magnetic-welding-ground-clamp.html?gclid=CjwKCAjw092IBhAwEiwAxR1lRmYD7JzQIa67I_srFf-necFjr3AfhuuHfNczDikJHayTZiKLIeX1ORoCP-wQAvD_BwE&wickedid=491598523414&wickedsource=google&wv=3.1
I haven't gotten that far yet. Got an inverter stick machine that has a switch for TIG. Haven't gotten around to getting argon or a regulator though. I figure it would be a little difficult for me.
I have an inverter stick machine that only weighs about 15 or 20 pounds. That's the real reason I won't bother with the flux core. If I need more heat or have to go outside, the stick machine is easier to deal with. Plus stick electrodes are more cost efficient. Only $15 or so for 5 pounds of 6011.
Professional rods? I'm getting more and more to the point that I will use a 6011 on mostly everything. I want to try a 6010, but don't want to be stuck with them if the machine won't run them.
I guess I need to upgrade my Mig welder. Then again, 180 amps, .030 and .035, and 100% CO2 handle most of what I come across. When it gets a little to heavy for me to trust myself with wire, the 150 amp stick comes out.