I’m in the process of restoring an old lapstrake wooden boat. The MultiMaster with a saw blade was the perfect tool for cutting out a section of a board. The boards overlap each other, and the travel of the blade of a jigsaw or reciprocal saw was too great to target the piece of the board that overlaps another board. Even doing it with a handsaw was too difficult to control on this tough wood.
The MulitMaster tool is just a vibrating head. So it vibrates this little sawblade and it cuts right through with great accuracy. The blade itself has very little travel, making it perfect for this application. I shoved a thin piece of sheet metal between the overlap of the planks to keep from sawing into the other board, and I was able to cut exactly where I wanted to. I know of no other tool that I could do that with, though I’d love to hear of any alternatives.