... .Diameter: 4'',6",8'',10" 3.Professional Manufacturer Metal/Resin Discs - Surface Grinding: Grit:50#,200#,400#Dia:4",6",8 ... :40x8.0x10 mmNet Weight:about 1.96kg The Metal Resin Discs have been designed for wet surface grinding and polishing natural ... resin only stages.Also see Resin Discs for surface polishing natural stone.The Metal Resin Discs are available as standard (Velcro back ...