The life of a tumbling media will depend on different factors. All tumbling media will have a different lifespan. Some mass finishing media lasts longer than the other. The different parameters that decide the life of a tumbling media are media size, amount of abrasive content, media shape, material type, and the type of mass finishing machine used. You can use the same tumbling media for many times as long as you are able to get the desired finish on the part.