巨型戒指芯棒 尺寸16-20 US

I work with heavy rings every day, and this steel mandrel handles the tough jobs without a wobble. The 1/4" size increments are spot-on for precise shaping, and the engraved markings are still easy to read after months of use.

The laser engraved size markings are incredibly easy to read, even in my dim workshop light. It holds my rings firmly for sizing adjustments without slipping.

The laser engraved size markings are incredibly clear and easy to read, even in dim light. I’ve been using this for shaping some stubborn sterling silver bangles, and it holds them perfectly without slipping. Much more solid than the cheap plastic ones I’ve tried before.