Abstract: A system for an extension device that attaches to hand screw clamps and similarly configured clamps. Hand screw clamps have two jaw elements that are interconnected by two threaded shafts. As the threaded shafts are turned, the jaw elements can be biased toward one another in a variety of configurations. The system includes a first tubular element having an open end. Two opposing slots are present on the first tubular element that extend inwardly a predetermined distance from the open end. The open end of the first tubular element is sized to receive a first of the jaw elements of the hand screw clamp, wherein the threaded screws of the hand screw clamp pass into the slots. The system also includes a second tubular element having an open end and two opposing slots that extend inwardly a predetermined distance from that open end. The open end of the second tubular element is sized to receive a second of the jaw elements therein.