Omnitool

The Omnitool is an object that appears in the Sonic the Hedgehog comic book series and its spin-off comics. It is a handheld multi-tool device used by Rotor the Walrus.

Appearance
The Omnitool is shaped very much like a horseshoe and has a handle between the ends. It possesses instruments on the surface and on the front point it has a rectangle with two short antennas on the side which have a red and green point respectively.

Abilities
Supposedly, the Omnitool can used for repairs of machinery. As seen so far, it can be used to cut through metal similarly to a blow torch. It is also seemingly waterproof.

Trivia

 * Though the Omnitool first appeared in Sonic the Hedgehog #257, it was not until Sonic the Hedgehog #258 that it was named.