The Pro-Plug Tool for PVC and Composite Decking and Trim is a superior and easy-to-install plug fastening tool. The free-spinning stop collar and protective O-Ring protects the board surface from damage. It features a no cam-out auto stop mechanism that prevents the screw from stripping while achieving the correct depth every time. Both deck bit and trim bit are included in the Pro-Plug PVC Tool package. 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.