Vise-grips tubing fitting installation tool. 0:31 video:
https://www.youtube.com/watch?v=jD-4YhJ7rKA
Previously:
https://www.homemadetools.net/forum/...936#post140628
https://www.homemadetools.net/forum/...972#post140771
https://www.homemadetools.net/forum/...264#post116146
