The Omniwrench 3000 is a melee weapon created by Gadgetron. It is an older version of the Omniwrench 8000 model, but otherwise functions the same way. Ratchet began using this wrench in Ratchet & Clank Future: Tools of Destruction, and used it through the events of the game. After Emperor Tachyon's defeat, Ratchet acquired an Omniwrench Milennium 12 model.
Gadgetron designed this weapon as a mechanic's tool, but Ratchet used it as a melee weapon. Appearance wise, it looks nearly identical to the Omniwrench 8000, with a few very subtle differences in its design. It has the ability to upgrade its damage output alongside the wielder's nanotech level.