Marksman Pro contractor-grade tools are designed for multiple deck applications. The Marksman is designed for a single deck application. The CAMO Marksman Pro is a heavy duty contractor grade tool. The Marksman Pro positions CAMO deck screws to penetrate the deck board. This tool easily adjusts to fit 5 A 1/4 inch - 5 A 3/4 inch deck boards and clamps securely to the deck board. The Marksman Pro also provides automatic 3/16 inch 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. Fits any 1 inch or 2 inch x 5-1/4 inch to 5-3/4 inch deck boardProvides automatic 3/16 inch spacingDual screw guides to fasten both sides of board to the joist