Features: Brand new and high quality The automatic screw chain adapter is installed on electric drills, it can be used for home ceilings, kitchen cabinets, etc. Practical and reliable, you can rest assured to buy and use. The screw length of screw drill chain adapter can be adjusted. The screws of different lengths need to be adjusted by selecting the corresponding nozzle length rotation button. Automatic screw spikes chain drill screw chain adapter screw depth adjustment through turn up or down the wheel. Upward adjustment for shallower screw and downward for deep screw. Fast and continuous nail feeding, easy to operate. lightweight design, exquisite appearance, and easy to use. Suitable for ceiling installation, thin-layer wood, cardboard, cabinet installation, design, fence, plastic board interior decoration, DIY handicrafts, etc. Specifications: Material:Metal+Plastic Size:Approx.235x45.5mm/9.25x1.79inch Package Includes: 1 Set Automatic Chain Nail Guns note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.