Features: <br> <br>Installed on electric drills, it can be used for home ceilings, kitchen cabinets, etc. <br>Automatic transform the screw without holding,free your hands. <br>The screw length can be adjusted. The screws of different lengths need to be adjusted by selecting the corresponding nozzle length rotation button. <br>The chain can hold 50 screws,enough for a long time work. <br>Screw depth adjustment through turn up or down the wheel.Upward adjustment for shallower screw and downward for deeper screw. <br> <br>Specification: <br>Material:Stainless Steel+Plastic <br> <br>Package List: <br>1*Chain Screw Gun Adapter <br>1*Screw Chain <br>1*Cross Bit <br>1*Screw Transfer Bracket <br> <br>Users Manual: <br>1. Put the bit into the drill and tighten. <br>2. Insert the gun head into the electric drill and tighten. <br>3. Put on the chain with screw.<br>1、Installed on electric drills, it can be used for home ceilings, kitchen cabinets, etc. <br>2、Automatic transform the screw without holding,free your hands. <br>3、The screw length can be adjusted. The screws of different lengths need to be adjusted by selecting the corresponding nozzle length rotation button. <br>4、The chain can hold 50 screws,enough for a long time work. <br>5、Screw depth adjustment through turn up or down the wheel.Upward adjustment for shallower screw and downward for deeper screw.