Grooved ring mandrel, Cast steel, size 1 to 15, for sizing, and forming ring shanks

Handel will be black and textured for grip.
This tool is essential for metal ring making. This has a groove for sizing rings with stones. You can size an existing ring with it and you can form a ring you are making. You can also slightly increase the size of a ring with this tool. If you have ever thought about making rings this tool in a must.