How To Read A Ring Mandrel

Join Tech Team member Gregg Burgard to learn how to correctly read a ring mandrel when sizing a ring.

Last edited: 10/29/2020

Jewelry Tech Team member Gregg Burgard explains how to correctly read and use a ring mandrel. Ring mandrels are useful tools that can be used to check the size of an existing ring, guide you when you need to change a ring size, or use when sizing new rings. Using a tapered, graduated ring mandrel, Gregg shows how to check the size of two different types of rings—one with a flat inside surface, and one with a curved (rounded) inside surface, like a Comfort-Fit style ring. Helpful graphics show how the ring mandrel works, highlighting the different touch points on the two types of rings mentioned.