I bought a new tool from Horrible Fright. Around $12.00 on sale. Never heard of it before. Not really big enough for pipe work but seems useful for big nuts. Work similar to vise grips but flat jaws that stay parallel. Would be better for me if the jaws were not serrated.
Bill D
Amazon has a better make for more money.
https://www.amazon.com/KNIPEX-83-10-.../dp/B005EXOIBA