I will bring the last few I have to the "cirque" they are made by Snap-on tools for WRENCH FORCE: 7mm allen swivel with 15mm swivel socket on the opposite end, to fit the Campy crank bolts.(these are - New Old Stock - no longer made) $20.oo each. A very nice tool.
Thank You
Charlie Petry
near Jennersville Pennsylvania U.S.A.