I bought 2 of the 8" vise vises for a workbench I built from recycled materials. The goal of my project was to build a solid bench for $100 or less, which I did. The vise is ok for the price I paid but they have some issues. First, the mounting bracket is not machined perpendicular to the jaws. So when you set up the vise it looks fine, but the vise keeps the piece of wood plumb with the bench. Why is this a problem? If using a hand plane, plan the board if it is not level with the bench you are using. This is because you instinctively align the board with the bench's horizontal plane. I solved this problem by using spacers under the mounting brackets. Now all the boards held in the vice are perpendicular to the table surface. The second problem is the handling of the ball screw vise. The tolerances are a bit sloppy, and because of this, when you clamp the board, you can see that the neck (the top of the vise) doesn't close as tightly as the bottom (next to the ballscrew). Wood inserts with a slight bevel make the inserts slightly thicker at the top than at the bottom. This way the jaws will move when pressed, but will now hold the board securely because both sides of the jaws are parallel. Despite these problems, the vise offers you excellent value for money. Most carpenters can easily use them to hold material for sawing, drilling, etc. However, if you are using hand tools such as planers to level boards, take the time to adjust the vise as mentioned above. The vises are durable and I expect them to last for years.