I wasn't sure it was the 555, but since you own yours
you have an adapter or pigtail.:)
I vaguely recall when the first of those 20A units showed up without neither and all that was on the temp power were 15A receps.... someone would just twist the prong to try to make it work, either that or you had a bunch of guys standing around with nothing to do ...other times the plug would get cut off and a cord cap wired on....
the one on the job now is so old it still has a drum switch for reverse...but it works just fine. even though it gets left out in the weather anyhow since that's where the work is.
I told my tool partner that I thought it was the same bender I used back in the late 80s with this shop
