This search result is new for me. Is it new for you? A search for [ratchets] has Google respond with three lines of alternative searches or related searches.
In this case the suggestions are a bit managed too. There's a bunch of numbers but they've had their context stripped. It shouldn't be '1 2' and '1 4' it should be '1/2"' and '1/4"'. Of course, it's not an uncommon problem to see Google strip out symbols in links. One of the most common reasons to disallow a sitelink suggestion is because Google's done something similar.
Sucks not to be one of the brands listed here.