This is the smallest bolt on Wilton bench vise I've ever come across. The jaw width is 2 1/2". It has 2 locking screws for the swivel base which seems like overkill for such a small vise. I found this at an estate sale a few years ago and it reappeared in my garage on a shelf I haven't seen in quite a while. I might of posted a pic before the site went down.