Smart-Bit Deck Screw Depth Setters are designed to make fastening decks, drywall, and other materials easier and faster, with clean and uniform results: perfectly set screws every time. The tool is adjustable so that it can be used with many different types of screws, and features an Auto-Stop mechanism that sets the screw at the target depth without stripping the screw recess. A free-spinning stop collar fitted with rubber O-ring protects the work surface from damage or marking. The Depth Setter works with both Phillips and Torx bits, and is designed for use with a full range of Starborn fasteners. It also works well with other fastener products. Standard drills are recommended for use with the Pro Plug PVC Tool and Smart Bit Depth Setter. Impact drivers may not set the screw to the correct depth.