Traditional Culture Encyclopedia - Traditional stories - Ceiling Dipper how to open the light hole

Ceiling Dipper how to open the light hole

Ceiling Dipper open light hole steps are as follows:

1, with a slice of wood board length over the radius of the hole can be, nailed on both ends of the nail.

2, nail head spacing for the radius of the open hole, find the center point, nail one end into the board, the other end of the nail beyond the board some, to the center of the nail as a round point.

3, stick to the board surface rotation, slowly increase the power, a few times after you can open a beautiful round hole. It is recommended to open a piece of plywood lining, thin aluminum easily denatured, there is a plywood to share a better.