The Jet 5712511 Vise Lead Screw helps provide smooth and precise jaw movement for compatible Jet metal cutting band saw vises. It works by converting the rotation of the handwheel into linear motion, allowing the vise jaws to open and close securely for accurate workpiece clamping. Made to replace a worn, bent, or damaged lead screw, it helps restore dependable clamping performance, i... https://www.wholetoolbox.com/jet-5712511-vise-lead-screw/5712511.html