I've been very happy with all the tools (and the price) on the Nashbar Woody. Just a few weekends ago I used the chain tool for the first time on the road when a friend busted a chain in a group ride. Can't remember if he had a thinner 9sp+ chain or something older (the bike was a Tiagra-equipped Bianchi Volpe if that helps pin it down).

For those that mention master links; are you saying in addition to a chain tool you also carry a spare master link in case your master link breaks, or are you saying it is somehow possible to slap a master link on to replace a broken link?