The hydrospanner was a type of common hand tool used as an all-purpose socket wrench and bit driver. It was used to tighten or loosen types of fasteners, such as nuts, bolts, and multiple sizes of screws and pins. Hydrospanners were in common use throughout the galaxy. They were used in the building, repairing, and dismantling of any mechanical device or structure like droids, equipment, starships, and related works of engineering.