JEWELRY MAKING STEEL RING MANDREL & RAWHIDE MALLET SET FINGER RING SIZING 1-15 (LZ 2.3 FRE) JEWERLY MAKING - RING SIZING SET - MANDREL & MALLET STEEL RING MANDREL GRADUATED 1-15 RAWHIDE MALLET #2 - 6oz. WEIGHT Ring Mandrel is a basic Jewelers workbench tool for any Jeweler. This steel mandrel is graduated with a smooth polished work surface. Mandrel is used in Jewelry making and repairs for measuring, sizing and enlarging rings as well as in wire wrapping work.