618s Precision Surface Grinder. 1.Usage:Hardware surface polish. 2.Precision Accuracy:+/-0.002MM. Main Usage:high precision grinding machine on metal surface, it's expert in polishing surface, high precision, degree of accuracy will be within 0.002mm.Main Market:Southeast, Africa, South America...Successful Cooperation Buyer From:Thailand, Philippine, Malaysia, Vietnam, Indonesia,Kazakhstan, USA. ...