The CAMO Marksman Pro is a heavy-duty contractor-grade tool. The Marksman Pro positions CAMO deck screws to penetrate the deckboard. This tool easily adjusts to fit 3 1/4 in to 5 in deckboards and clamps securely to the deckboard. The Marksman Pro also provides automatic 3/16 in spacing between boards and has dual screw guides that enable both sides of the board to be fastened to the joist with single tool placement.