... ,terrazzo,epoxy 2,siemens motor,220V,380V 3,aluminum gear 4,stainless steel angle grinder grinding stones ... HWG 59 could hold 12 pieces of diamond tool at a time. With ... and level the concrete surface before epoxy coating;2, Grinding and polishing concrete, marble, granite, ... speed,for meet different requirements of grinding.2, With magnetic disk and velcro, it is very ...