1. Unique Design: The revolutionary design of the wrench extension features an internal hexagonal key plate for strong and precise screwing. Its colorful splicing design adds a touch of uniqueness, while the rotation lock function ensures a secure hold. Achieve maximum precision and efficiency in every job with unparalleled grip and control. 2. Multifunctional Design: With the multifunctional bit holder extension for hex keys, including an 11mm size, you can effortlessly adjust and complete any hole position between 1.5mm to 10mm, catering to all your and handwork needs with accuracy. 3. Effortless Application: Experience seamless use with our wrench extension's Thandle wrench adapter and chamfered edge clamping head for easy insertion. Featuring an afterburner stick design and a hex key handle, the gentle and easy application makes your work a breeze. 4. Convenient to Carry: Thanks to the refined design and compact size, our wrench extension tool bar is lightweight and portable, allowing you to take it anytime, anywhere. Its small form factor ensures easy use even in tight spaces.