this welder i just bought has got the old twist lock plug for running grinders off of where do i get a regular plug that will fit in there or what do i do so i can run a grinder off it
A full service electrical supply house should have a regular outlet to fit in that hole, or You could put a twist lock plug on the end of an extension cord and leave the outlet alone.
ive actually never seen a twist lock except when i did a job for disney in california. all the union crews out there used them but never even seen one on a site here in texas can you get the plug at home depot