Feature: 1. Efficient And Labor Saving: This drill screw chain adapter is given power by electric power, which can continuously hit nails without hand holding up the nails, greatly improving the working efficiency. 2. Automatic Adjustment Function: This chain nail guns adapter has depth and length adjustment function, which can adapt to different depths of nailing needs, as well as adjusting the length of the nailing nozzle for different lengths of screws. 3. Stable And Reliable: This screw spike chain nail gun adapter is equipped with a corresponding batch head transmission, which can ensure the stability and reliability of the nailing process. 4. Thickened Spring Thrust Design: This chain belt screw gun converter adopts thickened spring thrust design, which can withstand higher cyclic working loads and ensure stability and durability for long time use. 5. Wide Application: This electric drill chain nail gun adapter has a wide range of applications and can be used for home ceiling, kitchen cabinet and other installations. Specification: Item Type: Chain Nail Guns Adapter Material: ABS, High Speed Steel Screw Length Adjustment: Screws of different lengths need to choose to adjust the corresponding length of the built in cross head nozzle. Screw Depth Adjustment Button: Counter clockwise to loosen, clockwise to tighten, with two states of loosen or tighten Fit Drill Diameter: 47-50mm Electric Drill Fit Screw Length Specification: Approx. 40mm / 1.57in, 30mm / 1.18in, 25mm / 0.98in, 20mm / 0.79in, Rod Diameter: 3.5mm / 0.14in Use: Installed on electric drill, suitable for home ceiling, kitchen cabinet installation.. Package List: 1 x Screw Gun Head 2 x Connecting Head 1 x Drill Bit 1 x Rubber Ring 1 x Nail Chain