Forster designed this unique vise with gunsmiths, hobbyists and do-it-yourselfers in mind. Just rotate the jaws, tilt it to the best working angle for you and securely lock it in place. Because the jaws on the Swiv-O-Ling rotate a full 360 degrees and adjust up to 28 degrees vertically, there's no unclamping, turning and re-clamping your work in a different position when you need to work on it from a different side or angle. Case hardened jaws are 3/4" wide and 3/4" deep. Notes: Jaws on the vise rotate a full 360 degrees and tilt up 28 degrees from vertical. Base is drilled for mounting to a bench. Mounting screws are included. Vise jaws open 1"