-用于铝合金门窗各类锁安装孔槽的铣削加工。
-由水平方向的三孔钻与垂直方向的仿型铣组成。
-三孔钻机头上下运动增加了导柱导向，保证三个孔对底面的平行。
-三孔钻后置布置，操作方便，符合人体工学原理。
-三孔钻气液阻尼自动进给，减轻了工人的劳动强度。
-仿形采用仿形模板和辅助定位两种仿形方式。

-Milling all kinds of lock holes.
-Formed by three-hole drill part (horizontal direction) and copy milling part (vertical direction).
-Movement of three drill head increases the guide pin under the guidance, guarantee the three holes on the under-side of the parallel.
-Three drill  rear  layout, easy operation, accord with human body engineering principle.
-Automatic  feeding of  three drill gas-liquid damping, reduce the labor intensity of the workers.