- "You have been designed for this mission, to be the ultimate infiltration units."
- ―General Grievous
Demolition droids were created in at least two models. A green model possessed a featuring vertical head with 4 photoreceptors while in combat mode, while an orange model possessed a horizontal head had three photoreceptors while in combat mode. The middle photoreceptor could also be used as a holoprojector.
During the opening infiltration and "high security infiltration" phases of their missions, demolition droids would disguise themselves as common sweeper droids, which were recognized by Republic officers. Once these phases were completed and the droids had infiltrated their target, they would transform into another mode, which was heavily armed and armored. The final of the droid’s modes was when two of the droids, one of the orange model and one of the green, would combine into a bomb to destroy their intended target. 
During the Clone Wars, Count Dooku ordered General Grievous to destroy a critical central power distribution grid utilizing six covert demolition droids. Dooku's impetus was to thwart the negotiation efforts of peace-minded senators in both the Republic Senate and Separatist Parliament, as well as to ensure the warmongering deregulation of the InterGalactic Banking Clan. Grievous sent several demolition droids, disguised as cleaning droids, to Coruscant. As the Senate debated the deregulation of the Banking Clan, the droids infiltrated and destroyed a critical power generator hub, plunging a section of the ecumenopolis into chaotic darkness. The immediate fear that resulted pushed the bills of banking deregulation into law.
- Queen's Shadow (Mentioned only)
- Star Wars: The Clone Wars – "Heroes on Both Sides" (First appearance)
- Star Wars: The Clone Wars – "Pursuit of Peace" (Appears in flashback(s))
- Star Wars: Commander
- Aftermath: Life Debt
- (First identified as Demolition droid)