SH-RZ42 (external rotation adjustment gear manual nail gun) belongs to the external rotation adjustment gear manual nail gun. It is a convenient force adjustment nail gun suitable for multiple scenes in the manual nail gun. The external rotation adjustment gear supports the adjustment force without disassembly, and belongs to the external adjustment nail tool. This product supports the installation of 8.4mm concrete steel nails and extended steel nails. It has 4 external force adjustment Settings, covers multiple materials, and can penetrate 6-8mm steel plates, making it suitable for engineering decoration. The extension rod can be connected to complete high-altitude operations, and the core components are treated for rust prevention to ensure durability. It is powerful and easy to operate, making it suitable for high-load scenarios such as outdoor construction. Its external rotating adjustment gear makes force adjustment more efficient and is a practical tool for multi-scenario opera…