Join Date: Nov 2005
Location: Cape Cod, MAssachusetts
Hex Heads, purpose... with a stationary lug wrench you could theoretical put a moment on the hex thus turning the brake shoe in the direction increasing the spring tension to release the shoe that is otherwise pried on in cars like Giuliettas with a large lever. At least that is what my theory is. A shop manual would probably confirm this with photos as typical for Alfa.