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- "Aaugh! What are you doing, master? Remove the arc wrench! Remove the arc wrench! Medic!"
- ―HK-47, after a failed attempt to repair him
An arc wrench was a type of tool that was commonly used in the repair of droids. The implement was common during the Jedi Civil War. Revan possibly used such a tool when attempting to repair HK-47, after purchasing him from Yuka Laka on Tatooine, in order to restore some of the assassin droid's deleted memory.