Step 5: Drill hole for cord
We need to drill a 1/4" hole to allow the electric cord to enter the base on the side 1/8" above the bottom and travel through the side of the base into the center where the cord will connect to the porcelain keyless socket.
inspect your disc and decide which side of the disc is best suited for the front of the lamp and which side is best for the back. The back side is where the cord should exit the lamp base.
Using a straightedge and pencil, draw a line on the bottom of the disc that intersects the center of the disc and travels from the front to the back of the lamp.
Using your pencil, mark 1/4" from the bottom on the side of the disc (this is where the cord will enter the base, so make sure this is on the side you consider the back of the lamp). Using a 1/4" bit, drill a hole from into the base, following the line you drew on the back, to the center of the disc. Ideally this is done using a drill press to ensure it is straight. The resulting hole should leave 1/8" of wood between the bottom of the hole and the bottom of the base.