Just a short post while the shop area is getting sorted after the move. I got this home-made cylinder head spanner in the mail. I particularly love the bronze brazing reminiscent of some practical folk art. Simple and utilitarian demonstrating the resourcefulness of classic motorcyclists. While I purchased this one, these spanners are simple to make if only I had a welder. The socket portion is avalable from Melco Products in Sheffield, England. Just Google "Melco Box Spanner" and you will find plenty of sources.
These are particularly handy for the cylinder head bolts buried in the fins so to speak. Conventional socket wrenches are rarely slim enough to fit and still accomodate the head of the cylinder bolt.
Definitely a labor and more importantly fin saving device.