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[Ltbadd]

I've used mostly the rigid but years ago had a flex lok, its a unique torch for sure.

Also the CK torches are 100% duty cycle AC and DC...

[Ltbadd]

can you provide some information on the part you're welding? Material and thickness, welding to any code...etc.

[Ltbadd]

Certainly the 212 and 252 will do the job, At my local Miller authorized repair facility, the tech told me the 252 is a solid machine.

Depending on your budget the new Millermatic 255 with pulse capability sounds like a sweet machine. I see this machine currently has a rebate offer

[Ltbadd]

Interesting project, so how did the backup perform?

[Ltbadd]

Steel is TIG welded using DC, AC is for aluminum...

[Ltbadd]

A rating of 1/1/1/2 isn't the best, but it is very good. Not sure anyone could tell the diff between that and a 1/1/1/1 rating.

Kind of odd to dig up such an old post, and then post what seems to be an advertisement...