These tools securely hold rings from the inside, giving easy access for stone setting and ring engraving. Use in any ball vice or most other types of vices.
Simply choose the collet closest in size to the ring put the screw and expansion in the collet and screw into the body. Put the ring on the collet and tighten until the ring is as tight as needed.
Included holder body, eight collets, expansion cone, screw, and wrench.
Please not the ring and the vice are not included.