... ,Wonder power saving motor 4,Factory,CE,SGS diamond wet grinder Diamond wet grinder ,Diamond grinder , Diamond disc grinder , Dlectric grinder 1 ... can be equipped with vacuum equipment to achieve dry and wet working. ModelQ7COperating speed300-1600rpmGrinding disc230mm*3Rotating Speed300-12600rpmHP7.5HPVoltage380-440 ...