This review is for the 5" model. I am really happy with these vises for the money (bought 2) I am using them on a made in spain bridgeport clone and I have no complaints other than that the included mounting hardware is absolutely worthless. Throw the bolts in your junk bin ASAP and take $10 out of the hundreds you saved by buying an import vise and buy some made in USA T nuts and some grade 8 bolts