RappaTools has an unChamfer tool built in, though it's not free. SyncViews was also working on an unchamfer script a few years ago, but I'm not sure if that ever got released.
I've had an unbevel script available for free for a few years now. I just dont have a nice site for it so I guess its hard to find. http://www.polycount.com/forum/showthread.php?p=1072304#post1072304 It's still going to be a pain for you to select all the edges you need to select. This only help with the unbevel part and…
Does anybody have a quick and smart way to unchamfer multiple chamfered areas without going in to select and delete the edges I want to remove? I have a script which helps me select chamfered areas, but I still can't find a quick way to deselect the looped edges and keep the ring edges selected. I have a model with about…