... efficiency.5.Draw-back collet.5.Electronic motor-driven tool post and double linear tool post available.6.Automatic or manual oiling system.7 ... thread. (2).Fit for auto and mobile part, valve, electric tool, hardware meter ect which surface Roughness is within 1.6mm ... )Servo motor (optional)programmingUp to ISO standardsCompensation formautomatic compensation of Tool and reverse gap BH0640 CNC LATHE