Description: First assembly the chassis of the cabinet. After chassis is ready, do a “mold” for your electric sockets with paper and scissors. When you have your mold ready, use marker to make the outline for the sockets hole.
Then take a drill (4mm) and drill as in the mold picture shows and when you have removed the extra bit away, just take a coarse file and even the edges.
After you have tighten the screws, put some silicone on the upside of the socket (wait until it dries) and you’re ready to wire the socket.