I need to remove several faucets. The faucet nuts are in a very tight space, in several places recessed into a hole in the basin (see the first two photos). There's no space to get a basin wrench, crescent wrench, or even vice grips in there. The nut does have two notches - is there a tool that can mate with those notches from below? In the third picture, there's a little more space but still not enough to get a basin wrench in there. Is a really deep socket my best bet? Something else?
Thanks for your help!
p.s. There's another post with a similar question, but the suggestion was a basin wrench and that doesn't work here. Also, he really only needed to replace the valve stem, so the conversation quickly diverted.