Dualitic inverter
A dualitic inverter was a piece of engineering equipment used by Starfleet engineers in the 24th century on Federation starships.

In 2372, Chief Miles O'Brien asked Crewman Janklow to get a dualitic inverter from the 's cargo bay while the ship was under attack from the Jem'Hadar in the atmosphere of a gas giant. However, Janklow was knocked out by a hull breach on deck two of the Defiant. ()

Engineering tools