There are many issues for the astronauts. They need to make a big tools, but the 3D printer has a small printing platform. They could print many parts and attach them together. They need a lot of fuel to power a rocket full of tools. NASA pays for every pound the bring up. The astronauts also have a limited amount of time finishing a project, so it takes more time when each of the tools are separate. My tool helps the astronauts to work faster because when the tools are combined, so they can take less time putting on and taking off tools. My tool helps save time because on one side there will be a screwdriver and on the other side there will be a hammer so the astronauts could put that on, instead of a screwdriver and a hammer. There needs to be an attachment in between the screwdriver and hammer with velcro or hot glue.