For a machinest vise I have a mediocre old craftsman that does what i need (I'd take a wilton any day though). On my main bench, I use the older Jorgensen quick release and it's been great for decades of use (but I don't know if it's manufactured any longer and if it is, what the current build quality is) - my smaller bench is a C Christensen worth wooden screws...meh. I purchased the LV front quick release vise and the tail vise about 3 years ago to build another bench but just haven't had the time to implement. That said, by inspection only, they seem very high quality and I can't wait to "make the time" to create the new bench and install them. GL