I had the same problem with my 996. It's just as easy to get a socket spanner. Buy a cheap set of 1/4" drive sockets (£10 from TK Max). Find which socket fits and then glue it on to the drive bar.
Thanks. That works for my 986 boxster but the access holes for the 997 mean that the socket won't fit through the hole. So I really do need the narrow headlight removal tool.