All Good advice. I would def make sure got a new drain plug bolt, as bound to round it off, as as someone said a new crush washer. to Torque it up, I cut down (in length) an old 17mm Socket and used a bendy coupling, (you know the ones I mean)...
Only leaves just enough 1/4 inch square drive to do the job, but it works. Don't try and do the bolt up using the socket as not enough room to frame, just for torquing up.
Fubar!!