The main benefits of Zirconium quick-change discs: Thanks to Zirconium,they are fit for a wide ... range of work surface. Our company may produce Zirconium quick-change discs.Thay may be used for mould and model making ... :DiameterRMPPackageP802520.000100JY10200,323825.000100JY100,395125.000100JY100,457620.000100JY100,66 Zirconium quick-change discs(Sanding Disc )