1.5 Adjustable Gears: The gun head features a sequential displacement interval gear adjustment design with 5 adjustable gears, offering distinct power effects and application ranges. It can be adjusted according to different building intensity requirements. 2.Easy to Use: Our manual steel nail gun is compact and portable. It can be operated in just five simple steps: 1. Wear safety glasses, gloves, and earplugs. 2. Choose the appropriate nail. 3. Position the nail gun vertically on the work surface, ready to shoot. 4. Apply vertical force to drive the nail into the wall. 5. Operate the slag recoil by holding the silencer sleeve and compressing the rear several times to retract the slag. 3.Strong Penetration Wide Application: The concrete nail gun delivers powerful penetration, capable of piercing a 3 mm steel plate in just 0.1 seconds. This nail gun is compatible with nails up to 25 mm in length. It is ideal for camera installation, electrical box installation, plumbing and electrical work, air conditioning installation, hanging picture frames, multifunctional shelves, small junction boxes, pipeline installation, wire binding, and more. 4.Double Silencer: The thickened silencer cover reduces noise. Simply press and release—it takes just a second to work, and a lid can be easily nailed without electricity. This ensures a more comfortable building environment without disturbing residents.