The Wera SC 3916 flexible socket wrench, with a 6mm nominal size, is engineered for efficient fastening in challenging applications. Featuring a flexible shaft, this tool allows access to screws in confined or difficult-to-reach areas. The integrated holding function securely retains the screw on the tool, preventing loss during installation or removal. This genuine Wera tool is designed for professional use, offering durability and precision for various mechanical and assembly tasks.