Jewelers Ring Clamp & Bench Pin Vise Repair Tool Set This is a new ring clamp and bench pin Well made clamp makes working on rings easier The handle features a cushion grip with excellent properties, maximum support, flexibility, lessens fatigue and increases productivity The jaws can open up as large as 3/4" (19 mm) The ring clamp measures approximately 5 7/8" x 1 11/16" (149 x 43 mm) The bench pin measures approximately 5 3/8" x 2" (137 x 51 mm)