Standard Graduated Round Ring Mandrel Size #1-16

This solid steel ring mandrel is the industry standard for measuring and shaping rings, featuring clear and accurate graduations from US size 1.0 to 15.0. It is made from high-tensile, case-hardened steel to resist marking and deformation when used for hammering and forming metal. The perfectly round profile ensures that rings are shaped accurately, providing a reliable reference for every bench task. This is an essential tool for every jeweler, used daily for sizing, forming, and checking the accuracy of finished rings.