Aluminum alloy construction provides a sturdy, durable, long lasting tool that couples with a drill to drive screws and nails in a variety of materials. Designed to be mounted on an electric drill, it is suitable for gypsum boards, partition walls, wooden boards, ceilings and other common DIY surfaces. This is a complete, user friendly tool for DIY enthusiasts. Adjustable depth and compatibility Adjustable depth: The adapter port can be tuned to fit the length and depth of the screw, helping you achieve consistent driving depth. Clamp range: Compatible with most cordless drills, enabling wide applicability without special equipment. Nail chain adapter and versatile use Nail chain adapter: The automatic screw chain nail converts a drill bit into a nail using the attached chain mechanism. As an accessory, it can be removed from the drill bit and used as a regular drill bit when not driving nails. Easy conversion: The adapter remains compatible with standard drilling tasks when the nail feeding function is not required. Automatic nail feeding for efficiency Automatic nail conveying: This electric drill screw tightening device features an automatic feeding mechanism with a chain magazine. It delivers nails quickly and continuously with accuracy, simplifies operation, and reduces the risk of nail drops. Applications and scenarios Drywall installation: Attach gypsum boards to studs or framing quickly with flush, consistent screws, using adjustable depth to control screw depth. Ceiling and partition projects: Mount ceiling panels or partition boards efficiently, leveraging fast, continuous feeding and reliable nail/screw delivery. Woodworking and DIY projects: Build or assemble wooden structures, shelves, or frames with rapid fastener delivery; when needed, remove the adapter to use the drill bit for ordinary drilling tasks. This product emphasizes durable construction, broad compatibility with cordless drills, adjustable screw depth, and automatic nail feeding to improve speed, accuracy, and control on common construction and DIY projects.