The Sawmmer is a mix of a hammer and a saw. There is also a case for the saw just in case someone isn’t that safe with the hammer. This will help in space by having astronauts not having to move around to get tools like a saw to cut wood and the hammer to nail them together. If you are using the hammer, I recommend to put the case on the saw so you don’t cut your hand off. I hope you like my Sawmmer.