Wooden ring clamp with bottom screw holder, great tool for securely holding rings when polishing & cleaning.
This clamp is sectioned in quarters, longitudinally with a core running through the centre. The ring is placed horizontally around the end and the wing nut at the base turned. As the wing nut is rotated so the quartered sections expand to hold the ring securely in place. Ring is released by turning the wing nut in the opposite direction.