- Innovative Design: This high-quality wrench extension features a unique rotation lock function that enhances torque and provides a strong, secure grip. Its vibrant splice design adds a touch of individuality, while the internal hex key plate ensures efficient and precise fastening every time. - Versatile Functionality: Our multifunctional bit holder extension is designed for hex keys, including 11 mm sizes, and seamlessly adapts to hole sizes ranging from 1.5 to 10 mm, making it a versatile addition to your toolkit. - Smooth Operation: Equipped with a hex key grip and a burner stick function, this wrench extension allows for easy and seamless insertion. The chamfered edge chuck maximizes grip and efficiency, making challenging tasks simple and manageable. - Portable Convenience: With its lightweight and compact design, this wrench extension can be easily carried and used anywhere. It is ideal for accessing hard-to-reach nuts and screws in tight spaces. Its retractable design ensures effortless operation and efficient results, no matter the situation. Use Scenarios: 1. Perfect for automotive repairs where space is limited, allowing you to reach tight bolts without hassle. 2. Ideal for home improvement projects, enabling secure fastening in confined areas like cabinets or furniture assembly. 3. Great for DIY enthusiasts who need a reliable tool for various hex screw applications, ensuring compatibility with multiple sizes.