The knammer is a simple tool constructed with two tools, the knife and the hammer. The knammer can help astronauts work all around the ISS and is very useful. You can use the knammer to cut and to hit things into place when you are doing work. I got the idea to concoct this simple combination of tools, from the need for saving space. Instead of bringing two tools the knife and hammer, you could just bring one tool, the knammer. The knammer could be a revolutionary tool for astronauts in space, and for the average human on the ground. It is capable of building things with one, excellent tool, instead of using two different simple tools. It will save space and uses less material to make the knammer. This revolutionary tool could change the way we work in space.