Feature: 1. [Chain Nail Gun Adapter] Compatible with 47.3 to 75.8mm electric drills, this chain nail gun attachment cam use electric power to improve work efficiency. 2. [Automatic Adjustment] With depth and length adjustment functions, this chain screw gun adapter can adapt to various nailing requirements. 3. [Reliable Performance] With internal bit transmission, this chain screw gun adapter ensures stability and reliability during the nailing process. 4. [Enhanced Spring Push Design] Featuring reinforced steel spring support, this adapter can withstand higher cyclic workloads, ensuring durability for long term use. 5. [Versatile Application] This electric drill chain screw gun attachment greatly enhances work efficiency for various projects such as home ceiling, kitchen cabinet installation. Specification: Item Type: Chain Nail Gun Adapter Material: ABS, Stainless Steel Screw Nail Length Adjustment: Different length screws require corresponding adjustment of the built in cross bit gun nozzle length Screw Depth Adjustment Button: Counterclockwise loosen, clockwise tighten, two states of loosen and tighten Compatible Drill Caliber: 47.3-75.8 mm electric drill Compatible Nail Specification: Rod diameter 3.5-4.2mm, length 20-55mm nails Application: Installed on electric drills, can be used for home ceiling, kitchen cabinet installation. Package List: 1 x Chain Nail Gun Head 2 x Connection Head 1 x Bit 1 x Rubber Ring 1 x Nail Chain 1 x Instruction Manual