Ring Holding Expanding Mandrel Tool

Adjustable expanding ring holding mandrel tool, precision made from solid stainless steel. One simple tool to hold all your ring sizes using flexible black nylon plastic sleeves that will expand to fit the inside diameter of rings for a tight grip while working on your rings. No other tools needed as it can simply be hand-tightened for a secure fit when fully threaded together. Mount ring sizes 4-15+ for inlay, sanding, polishing, etc. 1/4" for small micro/mini lathe chuck Fully functional, practical and easiest inside ring holding tool for your ring making needs.