Gem cutting machine is one of the easiest to use and learn how to use. I already have 2 and do not need a 3rd. I cut and teach on the ones i have.Comes with all the keyed dops you see and 6 inch diamond wheels which means you can easily be working on several stones on different dops. Also comes with the preformer for shaping stones for faceting or cabbing. Also has 2 cab forming grinding wheels as shown so you are not limited to just gemstones.