Cover for Ceramic Lamp Socket E27

I was designing a lamp and wanted to use ceramic lamp sockets with an E27 socket, as they are the most compact ones I could find in terms of height. As there were no color options and I was not sure if I could make the hole where the socket should go, into in a perfect circle, I gave the model about 3mm overlap.It fits tight and as lamps can get hot, I'd propose printing it with ABS or ASA.