5 way nav switch in handwired case?

Hi there, I was wondering what size hole you need for a 5 way nav switch. For hand soldering that is. NOT for a pcb.

It doesn't seem to have a lip, and the official docs have it at 10*10mm, but that would just fall through.

Do I have to have individual holes for the contacts? Is it even possible to use outside of a pcb? Anyone have any ideas?

Thanks for the help.