I was looking at the most economical valve adjustment wrenches for the 65-85 year non hydraulic lifter model mercedes diesel (I own a 84 300d) and couldn't believe how much they cost. Plus they don't even nest together and the head of the wrenches are too thick for there own good. I've put together a really nice tig welded 14mm wrench set (2) for $40 shipped. Can't beat that. Email me if you are interested.
p.s. the head of my wrenches are leveled to the proper thickness. No groove necessary because that makes the wrenches prone to slip.
-jon
