FastenMaster's PAMFast is an auto-feed screw system that uses an auto-feed screw gun and compatible screws to easily install subfloor, decking, drywall, and more. The PAMFast screw gun is fully assembled for use while standing, but also adjusts to being handheld for wall applications. The PAMFast gun is meant for use with PAMFast screws or FastenMaster Trapease 3 screws.