Materials to be prepared include aluminum alloy doors, electric drills and clear water. The specific steps are as follows:

1. Make a small hole at the beginning to facilitate positioning operation.

2, clockwise rotation, while controlling the speed to avoid fracture.

3. In this process, clear water is needed for cooling.

4. After completion, rotate counterclockwise and pull it out directly.

In this way, if there is no problem, you can punch holes in the aluminum alloy door.