BZ0216 Glass drilling machine.  The bottom drilling is fulfilled automatically, the upside drilling is controlled by pressing down the control lever. A pneumatic trans-table is provided with machine.  The bottom drilling depth can be adjusted by rotating the graduated handwheel. The infeed speed of bottom drilling head can be changed by turning the smaller handwheel, a pneumatic-hydraulic damper is equipped to keep the infeed speed stable.  The motors speed and working mode can be selected through operating panel. The foot switch is for hole positioning operation.