3 Inch Tabletop Swivel Vise An economical yet functional tabletop unit, this vise has 3 jaws lined with durable rubber to prevent scratching your soft and precious metals and jewelry. The clamp has an extra large opening to fit almost any bench or table, up to 2 1/8 inches thick. The ball and socket joint configuration allows the jaws to rotate and tilt in a full 360 degrees yet hold the jaws firmly in place at any angle.