As strange as this may sound, if Tool were a punk band, they would probably sound something like Quicksand.
I would strongly recommend this to anyone who is a fan of early 90's post-hardcore or "grunge". Quicksand has a really bass driven sound that is really mathy, penetrating and hard hitting. With that said, the record is full of subdued moments which could be seen as a catalyst for some of the other post-hardcore/emo based bands that emerged in the early to mid 90's.
A unique band, and as the last reviewer said it's a pretty magical cd. Check this out if you like bands like Drive Like Jehu and Jawbox.