I had when purchasing this vise of some "good" reviews (and the price) can be influenced. This vice is to use my mind to anything. The beweglichs jaw side wobbles in all directions back and forth. Guided tours are the part completely alien. Creating a precise voltage is likely to be almost umöglich, at least if you muss.Leicht tighten slightly at the top edge of the jaws can then slide out of the object to be clamped. I can no recommendation for this vice, even for the hobbyist. Dear spend a few euros more and buy something sensible.