OK - dumb question to start the weekend:
Got to bleed the brake system this weekend (1990 110 with rear drums) and I've noticed that the front calliper brake nipple is conveniently hidden between two bolt heads (just to make it impossible to get any sort of swing on a spanner). Is there any sort of gizmo that enables you to open and close the nipple while still keeping the tube on it? The only other thing I can think of is a socket and pump pliers with the tube coming out of the hole in the back of the socket, or failing that can you put a longer nipple on it, and if so what is the thread?