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Inside Ring Mandrel Benchmate

This attachment adds inside ring-holding capability to any BenchMate. Channel, Bead and Bezel settings are surprisingly easy using this holder. From the set of collets, you select the closest size that fits inside the ring. The screw expands the hard plastic, non-marring collet to hold the ring securely. Slides into the BenchMate collar or used alone. Provided with seven collets.