The three kinds of grinding we offer are:
Tumbling - used to provide a smooth finish on metal surfaces. Rather than being abraded by grit or vibrations, tumbling requires the part itself and a tumbling machine to get the surface shiny and free of imperfections.
Polishing - can remove what is left over from grinding, but is very rarely used on its own. Polishing is a less harsh method of smoothing the surface and great to use in conjunction with one of our other finishing methods.
Vibratory Grinding - helps minimize mechanical surface damage. The metal part is abraded by the repeated high-frequency vibrations.