NM-K reconstitutors, also called nano-droids were a type of microscopic droid mainly used in electronics fabrication. At a mere 1.5 nanometers in length, nano-droids were undetectable, except by dedicated sensors. The droids were stored in a suspension of electrolytic transfer fluid, and workers would apply them to material using a swab or roller. If illegally reprogrammed, NM-K reconstitutors were capable of reconstituting carbon-based matter into dangerously unstable configurations, with the potential to create violent explosions. Because of such deadly applications, nano-droids were strictly regulated by Galactic Republic law and prohibited outside of closely monitored industrial uses.
Late in the Clone Wars, Letta Turmond, under the direction of Jedi Barriss Offee, fed nano-droids to her husband, a Jedi Temple worker named Jackar Bowmani, and used him to stage a bombing of the Temple's hangar. The resulting explosion killed Bowmani and twenty five others, with dozens more wounded and extensive damage inflicted to the hangar.
- Star Wars: The Clone Wars – "Sabotage" (First appearance)
- Star Wars: The Clone Wars – "The Jedi Who Knew Too Much"
- Star Wars: The Clone Wars – "To Catch a Jedi"
- Star Wars: Scum and Villainy: Case Files on the Galaxy's Most Notorious (First identified as NM-K reconstitutor)