* MD215A Internal and end face grinding machine tool * This machine tool is mainly used for grinding internal hole, stepped hole and internal tapered hole with small diameter. * The guide rail of machine tool adopts double-V preload high-precision rolling guide rail with good rigidity. * High-speed high-power electric grinding wheel spindle powered by static frequency converter is adopted, which is of low energy consumption and small noise. * The feed mechanism adopts triple-roller system which is hydraulically controlled and has high precision.