STEEL RING MANDREL GRADUATED 1-15 MARKED SIZER METAL JEWELRY SIZING TOOL STICK (LZ 1.9 FRE) NOVELTOOLS SOLID STEEL GRADUATED RING MANDREL JEWELRY MAKING MANDREL SIZES 1-15 WIRE WRAPPING - RING SIZING MANDREL FULL ROUND SMOOTH GRADUATED Jewelers Ring Mandrel is a basic workbench tool for any Jeweler. This steel mandrel is graduated with a smooth polished work surface. with knurled handle Mandrel is used in Jewelry making and repairs for measuring, sizing and enlarging rings as well as in wire wrapping work. Round Steel Mandrel is Graduated in US Standard Sizes with number markings ranging from Size 1 - 15, with increments of Full, Half and Quarter Sizes, making it easy to size the ring. The overall length of the mandrel is 12", the Graduated working Length measures 9-3/8" Long. The handle length is approximately 2-5/8".