In my experience, fitting mortice locks is one of those fiddly, careful-careful, measure thrice jobs where rushing or using blunt objects can be fatal. Fitting the locks to Wendy Ann’s sliding wheelhouse doors was even more so. Not only did I have to find suitable locks (which only took months of looking, eventually got lucky on a well known internet auction site), but then went through all the careful drill and chisel work of fitting four in total, two to each door, only to realise that the cunning recessed door jamb that Mark so carefully routed out when we built the cabin meant that the keys had no room to turn in their holes. Bugger.
In the end the only solution was this, eight carved scoops out of the jamb in order to give the keys room to turn. Thank goodness Ranka so kindly recently lent us a set of strangely shaped carving chisels to play with.