AA beginner's vise that will satisfy experienced tiers as well. The Apprentice Vise has a rotary tension screw, a hinged stem, and will hold hooks size 28 to 1/0. All anodized aluminum from 2024 aluminum with hardened steel jaws. Improvements include a rotating head, a hinged stem, and a more attractive silver satin finish. It is important to note that while the new Apprentice has a rotating head, it is not a true rotary vise. The rotating head allows tiers to turn a fly over without removing the hook from the jaws, giving them much greater versatility with this vise. Available in C-clamp only. C-clamp opening distance 2 7/16". Stem height 7å_". USA.