I have one of those, and trust me---they will not do for light milling. They have a tremendous amount of backlash, and are really only suitable for a drill press vice.----How do I know?---Well, not long after I purchased my lathe a couple of years ago, I had the same thoughts as you.--it seemed logical. I think I paid about $35.00 for mine. You really do GET WHAT YOU PAY FOR!!! Brian