Evo-gsr... very true. I have a set of those and they have paid for them selves 100 fold. I used to go down to the local Pick-a -Part. Guys tried pulling heads of Falcon EF-EL-AUs. The head bolts are a full prick to get off. They would round a couple of head bolts off AFTER pulling everything else off ... Comes along me with the SnapON socket, 2 minutes work, and walk out with a head. Sure saved some time getting everything else off LOL. Moral of the storey.. Make sure the first thing you do is crack the head bolts FIRST !! They are like a "female" version of an Ezy Out. I cant believe how tough they are. I've had a metre long bar trying to crack those falcon head bolts, and they still haven't broken !