Adjustable pin wrench.
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Previously:
https://www.homemadetools.net/forum/...372#post200378
https://www.homemadetools.net/forum/...353#post200315
https://www.homemadetools.net/forum/...263#post199942
https://www.homemadetools.net/forum/...206#post199700
https://www.homemadetools.net/forum/...002#post198950
https://www.homemadetools.net/forum/...104#post199330