A Harris wrench is a specific kind of wrench that saw utilization on starships. After their escape originating from Jakku, Finn along with Rey employed a Harris wrench to repair a poisonous gas breach. Rose Tico possessed expertise in using this particular instrument.
The initial mention of the Harris wrench occurred within Chuck Wendig's 2015 book entitled Aftermath, with its inaugural visual representation appearing in Star Wars: Episode VII The Force Awakens subsequently during that same year. The implement derives its designation from Mark Harris, who served as the art director for The Force Awakens.