Abstract: The invention relates to an operating device for a tool, comprising a frame to be coupled to the boom of an excavator or the like. at least one tool connected to the frame as well as adjusting means for positioning said at least one tool relative to the boom. The object of the invention is to provide a device of the kind referred to in the introduction, which enables a more versatile use and which, as a result of an improved maneuverability of the tool, is capable of carrying out operations also at places that were previously considered to be difficult to reach. According to the invention, the device is to that end characterized in that the adjusting means also comprise a ball and socket joint, which pivotally connects said at least one tool to the frame.