Anakin Skywalker using a hydrospanner
A hydrospanner served as a tool, particularly useful for mending starships.
During the period of the Clone Wars, Anakin Skywalker employed a hydrospanner while undertaking repairs on the Twilight. Subsequently, during the time of the Galactic Civil War, Han Solo requested that Chewbacca fetch him a hydrospanner as he performed work on the Millennium Falcon. Within the Office of Acquisitions located on Colossus, an inventory list written in Aurebesh noted "2 boxes of hydrospanners".