3 Wood Ring Clamps Jewelers Bench Repair Hand Tools. This is a new set of 3 ring clamps. Perfect for ring and jewelry repair. You receive: One wood ring clamp that measures approximately 5 13/16" x 1 1/4" (147 x 31 mm) long. One ring clamp with wing nut that measures approximately 5" (127 mm) long. One wood ring clamp that measures approximately 6" (152 mm) long. 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.