Clamp On Bench Vise For Metal Working, Jewelers & Hobbyists. This is a new clamp on bench vise. Used for metal working, jewelers and hobbyists. Easily mounts to your bench using built-in clamp. Has jaws that measure approximately 1 1/4" (31 mm) and opens to 1 1/2" (37 mm) full thread. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.