Claw-cable

A claw-cable consisted of a flexible durasteel cable, which had a grappling claw equipped at the end. This line could be deployed from a utility belt or an aerosol launcher for use as a grappling line.

Although it was possible for a human to use the claw-cable, the device was generally installed on a droid, and was generally used in concert with a powered winch.

Source
Star Wars Episode III: Revenge of the Sith (novel)