I use an 8mm combination open/closed end wrench and a screwdriver. Use the the wrench vertically (open end of course) and do the final tightening by putting the screwdriver blade through the closed end of the wrench and using that to turn the wrench.
there are thin wall sockets made that might work but since the my method works I can't see any reason to spend the $ to find out if the special sockets would work.