Guys I'm doing a bit of a favour for an old dear, friend of a friend and that. The taps on her basin are 40 years old and boxed in underneath. Basically they will not undo, I have taken off the pipe and just need to undo the tightly sealed lock nut. Ordinary tap spanner won't fit as its in a reccess, my halfords 27mm long socket is about 1/4" to short due to the long thread on the tap and I cant access to cut it shorter. Don't want to damage the tap anyway as if it won't come off I will need to reconnect it. Anyone know where to get a longer socket or other tool which may work? Ta.