This tool will be used to screw and hammer bolts, nuts and anything you need on your "trip to mars". It is a combination of a hammer, wrench, and a screw driver. Any repairs needed to be made on your ships will be solved. This is an assembly, so notice the two parts, the bit and the handle. The bit fits one way into the handle directly into the little slot with the head sticking outward. Finally, thank you for accepting my space part.