Laser scalpel

A laser scalpel is a Transformer surgical tool. It emits a variable laser beam that can be adjusted to cut or heat materials. It is not known what distinguishes laser scalpels from cyberforcepses; presumably the cutting mechanism used is preferable in some circumstances, though it may simply be an instance of Decepticon vs. Autobot technology.

Marvel Comics continuity
Ratchet is fitted with a laser scalpel in his right arm, which he could deploy into his palm or retract into his inner wrist.