A stepped ring mandrel on base is a tool designed for sizing and shaping rings. It features a metal mandrel with multiple stepped sections of varying sizes. To size a ring, you place it on the appropriate step and use a hammer or other tools to adjust the fit. The attached base offers a stable platform that prevents slipping and enhances control during use.
These mandrels are commonly made from steel due to its durability and heat resistance. The base-mounted design adds stability, making ring sizing easier and more precise for jewelers.