Homemade magnetic vise. By Jörgen Börg. 2:28 video:
https://www.youtube.com/watch?v=O4HU5BDFOsI
Previously:
https://www.homemadetools.net/forum/...862#post152542
https://www.homemadetools.net/forum/...609#post151690
https://www.homemadetools.net/forum/...594#post151614
https://www.homemadetools.net/forum/...888#post148638
https://www.homemadetools.net/forum/...838#post148434
https://www.homemadetools.net/forum/...795#post148275