There are 100% mice under my kitchen sink. I need to rip out the cabinet part to see whether and how I can patch it up to keep them out. I'm digging in from outside beyond the foundation, too, but that is another story. What tool do I need to cut the back of the undercabinet under my sink? I don't want to remove plumbing or countertop or even sidewalls and doors, but the floor of the cabinet may have to go if they are under it. I feel like a circular saw would be too unwieldy and large, and I want something the size of a sander. Thank you. Tool illiterate.