Durston 1303 Gem Ring Stretcher Mandrels Wide size range — approximately

Wide size range — approximately 5/8" to 2-3/8" (17 mm – 61 mm depressions)

but fit is not guaranteed

All sales are final

Developed around Mike Dubber's original steel Master Plate

it is recommended to grind the undamaged side to match the damaged side and continue use

Durston 1303 Gem Ring Stretcher Mandrels Wide size range — approximatelyThe Durston 1303 Gem Ring Stretcher is purpose built for enlarging stone set rings without disturbing the setting. By selectively stretching the ring shank opposite the stone, this tool allows jewelers to size up rings that would otherwise be difficult or impossible to resize using traditional methods. To use, select the roller that best matches the profile of the ring shank, place the shank on the center die, and roll back and forth across the bottom