UP for auction is a Used Diamond Demon, also known as the Pro Demon made by Crystalite ProductsQuick change discs Custom-built smooth electronic variable speed control High torque motor with Polyglass V-belt and steel pulleys. Aluminum body with plastic tub reservoir . Built-in recirculating water system with submersible pump and adjustable water feed and valve. Double row sealed ball bearing arbors. Includes extra discs, of various grits, two are new, others still have plenty of diamond on them. Machine is in good running condition from my own studio.