Diamond Soft Smoothing Nova Sanding Polishing Laps ensure rapid removal of grinding marks and high spots on gemstones,glass and Glasseye etc. The key to the fast smoothing action of the discs is diamond resin bonded to a flexible surface.Diamond Smoothing pads are guaranteed to out-perform silicon carbide discs and diamond compound finishing systems. They will adhere to most lags or backing plates. This state of the art finishing system can be used with almost any machine. This is the same finishing system used on the the Heavy Duty Grinder and Polishing Machine and the Hi-Tech All-U-Need cabbing unit.