Specification Name: Spring Steel flexible joint rod Interface: Square joint with chuck Features: It can be flexibly operated in narrow Spaces Specification :1/2 large fly 253mm(9.96inch)/350mm(13.78inch) Applicable: Manual wrench/electric wrench/pneumatic wrench Description Universal 1/2" Square Drive Compatibility – Designed for 1/2-inch (12.7mm) electric impact wrenches and socket tools, fits most professional-grade power tools seamlessly. Flexible & Steel Construction – Made from high-strength elastic steel with reinforced design, resists bending and deformation under heavy load. 360° Flexible Rotation – Allows smooth operation in tight or hard-to-reach spaces, ideal for automotive repair, machinery maintenance, and industrial applications. Double-Threaded Design – Securely connects to both tool and socket, preventing slippage and ensuring stable torque transfer during use. Compact & Lightweight – Easy to store and carry; perfect for mechanics, DIYers, and professionals who need reliable extension solutions on the go. Package 1/2PC Spring Steel flexible joint rod