... cutter grinder. 2. accurate and rapid 3.easy to operate Ball Cutter Grinder Mr-X81. It is specialied for the ball cutter.2.Grinding is accurate and ... service life.4.The electrically controlled and powerful DC motor: stable frequency, strong horsepower and long service life.Technical parameters:Range: Φ6 ... Collets: Φ6,Φ8,Φ10,Φ12,Φ14,Φ16,Φ18,Φ20Sample: Ball Cutter Grinder (Newest & Patent)