Basic ring mandrel expanding ring mandrel, full and half sizes in one mandrel, stainless steel construction.
These are the basic ring mandrels, not a professional version with narrower steps and quite a few more steps per mandrel, excellent choice for beginners or casual ringmakers.
Steps are .185 inch or 5mm wide per step
All Expanding ring mandrels are supplied with a key, extras available
2 sizes available:
full size from 4 to 8.5
full size from 9 to 13