Includes a high quality, stainless steel expanding ring mandrel, and a hex wrench:
Ring Sizes: 7.5-10.5
Stainless steel will never rust and will withstand sanding much longer than regular steel.
The Expanding Ring Mandrels enable you to get a high level of precision when making rings. They allow you to expand the number of different styles you can properly make. Each step has plenty of space to work with.