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Stepped Ring Mandrels

These stepped ring mandrels are perfect for forming wide shank rings. Because they are not tapered like a traditional ring mandrel, your ring shank with have a uniform inside diameter. The full-ring-sizes model has 13 steps (US ring sizes 4-16). The half-ring-sizes model has the same number of steps but in US ring sizes 3-1/2-15-1/2. Steps are 1" wide. Overall length 13-1/2". Made in USA.