Rigging rope wrench.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...h_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...ope_wrench.jpg
3:05 video:
https://www.youtube.com/watch?v=MfFeDTTkWSY
More: https://www.iscwales.com/Uploads/Blo...ope-Wrench.pdf
Previously:
https://www.homemadetools.net/forum/...634#post147567
https://www.homemadetools.net/forum/...060#post125599
https://www.homemadetools.net/forum/...054#post125559