JDG PRO expanding ring mandrel – half ring sizes 9.5-13.5 only
Professional-grade, wide step JDG PRO expanding ring mandrel with wrench to make JDG two-piece rings in half sizes, sizes 9.5 to 13.5. Step width ¼ inch. Full stainless steel body and hardware. Not intended for Lifestyle rings.
Shaft size 1/2 inch for easy mounting in a collet chuck or any other chuck. Chuck not included.
Made in Ontario.
Price per mandrel in Canadian dollars