Here is my Reed Prentis 4C. It weighs about 120 lbs. I paid $25 for it a few years ago. The rotating base was broken, so I brazed it and mounted on a piece of 3/8 plate for support. It is so tall I bolted some angle iron to the front of my bench to lower it down, and put a 2" x 1/4" steel leg under it that is bolted to the concrete floor. I haven't been able to break that mount loose yet! The second picture shows a 2.5 gallon oil jug in front of it for scale! You can see the hole for the grub screw I was talking about on the side of the vise next to the handle. If you back that out you can adjust the amount of backlash in the screw by tightening or loosening the ring around the shaft of the screw behind the handle.