Arc welder/Legends

Arc welders were tools carried by astromech droids. Their main purpose was for repairing things, such as bulkheads, but creative droids could improvise to use them for various other purposes. R2-D2 used an arc welder to release Leia Organa from his shackles on Jabba's Sail Barge in 4 ABY.

Appearances

 * Star Wars Episode VI: Return of the Jedi