Vertical drilling machine 1.Automatic discharge knife device. 2. Spindle automatic feed ... for single pice, small batch and mass production for drilling, counter boring, reaming, tapping, spot facing ect. MODELZ5050A ... Max drilling dia (mm)50 Max tapping dia (mm)M30 Column ... .W. (kg)650/580 Packing size (cm)125X80X225 vertical drilling machine Z5050A