Features Efficient and Labor Saving: By providing electric power, the product is fixed on the machine, achieving continuous nailing without the need for handheld operation, greatly improving work efficiency. Specification: This chain screw gun adapter is suitable for 47‑50mm diameter clamp electric drill, with a screw rod diameter of M3.0‑3.8 and a length of 16‑50mm, the length of the bit drive rod is 165mm. Adjustment Function: This adapter has depth and length adjustment functions, which can adapt to the nailing needs of different depths, as well as adjust the nail nozzle length of screws of different lengths. Thickened Spring Thrust: The chain screw gun adapter adopts a thick steel plate spring support, allowing it to withstand higher cyclic working loads, ensuring stability and durability for long term use. Application: This chain screw gun converter is often installed on electric drills, suitable for installation projects such as home ceilings and kitchen cabinets, providing stable and efficient nailing operations. Specification: Item Type: Chain Screw Gun Adapter Material: ABS, High Speed Steel Applicable Diameter: Approx. 47-50mm / 1.9-2in Electric Drill Applicable Nail Length: 40mm, 30mm, 25mm, 20mm, Rod Diameter 3.5mm Application: For Home Ceiling, Kitchen Cabinet Installation Package List:1 x Screw Gun Head 2 x Connecting Head 1 x Bit 1 x Rubber Ring 1 x Nail Chain Package List 1 x Screw Gun Head 2 x Connecting Head 1 x Bit 1 x Rubber Ring 1 x Nail Chain