... ,siemens motor,220V,380V 3,aluminum gear 4,stainless steel angle grinder grinding stones HWG 59 could hold 12 ... could 100% touch wall and grind corner.Advanced angle grinder grinding stones HWG 59 would not leave trace on ... , Wet grinding: water tank; Dry grinding: Vacuumcleaner;4, Hand can be adjusted 360 degree forward and backward ... of grinding and polishing:... HWG 59 angle grinder grinding stones