Tool? I think so, I have some profile molding in my kitchen that I need to sand which my palm sander can't get to. I am thinking about these sanding sponges so that I can get into those cracks and round overs and maybe press hard so that they can fit profile. Well these sponges are little over 3.00 a piece but if they work then its worth it. Any suggest on what sponges and where to buy vs HD or Lowes?