CNC double column jig boring machine can complete precision boring, precision milling, tapping, precision marking and drilling, reaming, refining cylindrical work, at the same time because of the design of vertical headstock and horizontal headstock, the workpiece clamping can complete two directions of processing. In order to expand the scope of use, the machine is also equipped with Φ800 mm digital display turntable and A 440 mm universal Angle turntable, which can carry out precision dividing, precision line, machining inclined hole and polar coordinate hole making. It is the ideal equipment for aerospace, shipbuilding, automobile manufacturing, mold processing and machine manufacturing.