First, why four stars - because it's not fantastic and takes hours of work to make a great vise for the money and that's why they get four stars instead of three ; Because once you've cleaned it, it's a decent X/Y vise for the money. I took the advice of other reviewers and, before even using it, I took everything apart, cleaning out all of the packaging grease (and, like other reviewers, found that it wasn't). it is not a suitable lubricant, it is just a grease to protect against corrosion)โฆ