Man! Those are nice! A few of mine have the chrome peeling off in some spots and the missing ones are on eBay for like $50 each right now.
I am going to scour the farm property next time I am there to hopefully find the missing ones. Then again, they were all scattered all over so they may be gone totally.
I used them recently to break some lines free on an excavator control block without having to take all of the lines across the block loose, it was very very nice! I would like to find a set of the 90 degree fitting nut sockets too eventually. Or buy some hobo freight ones and mill the slots into them.