Machine spindle inverted, more conducive to chip discharge, but also to obtain excellent processing surface quality. Machinecontrolled by PLC, with "friendly" man-machine dialogue interface. The same drilling depth can achieve shorter tool length, bettertool rigidity, and higher cutting efficiency by matching the dedicated guide mechanism. Two independent processing units, canprocess the same or different specifications of parts, so that the factory scheduling more flexible and efficient. Horizontal gundrilling machine with an area of less than the same processing capacity.