1.CE,ROHS 2.Micro motor polishing tool 3.Delay protection 4.Overload protection 5.Coaxality is 0 ... series of high precision micro grinder machines.Our products are broadly used in Nail art , Jewelry engraving , Dental grinding , Mould polishing , Wood ... line customized from Japan,HAITIAN,high-precision measurement equipment,laser machines Sales points and Focus :1.Quality always comes first 2. ...