This thing is not very strong. I clamped a bench block to do some Armorer work  very tightly and when I got done the work table was bent. This thing is more for the hobbyist or light work around the house as long as you don't push it too hard. Do not expect to mount a vice on this thing or do more than some light duty wood working. It was great for cutting 2X6" boards for the deck and garage work. For holding something to work on it forget it .