[Jason Marburger] from Fireball Tool needed a really large heavy-duty vise, so he built himself a massive 1490 lbs / 676 kg floor-standing blacksmith vise from scratch. Blacksmith vises are ...

We tested the handle-and-screw action of the vise by loosening and opening the jaws and then closing them again. The heavy-duty bench vise jaws moved smoothly and evenly—no sticking or hanging.