Extra Leverage & Torque: 15inch wrench extender tool bar multiplies torque for loosening rusted or stubborn bolts, seized fasteners or overtightened nuts. Bar end come with a 5/8 inch hex hole, you can attach tool to extension tool for super tight bolts. Compatibility: Our wrench extension bar is compatible with 1/2inch drive or a 21MM hex drive extender. This wrench extender adapter is great for professionals. You may need these when working on heavy equipment as a technician. Chrome Vadium Steel: This wrench extension bar is constructed of quality chrome vadium steel with excellent torsional strength and endurance, which can withstand high torque pressure without deformation or breakage and has a long service life. Comfortable Design: Non-slip grip of wrench extender for maximum control and comfort. The front locking mechanism ensures a stable wrench connection. Hex hanging hole for convenient storage and quick access. Easy to Use: This wrench extender tool can be simply clipped onto an existing wrench handle to effectively extend the working length and amplify the torque applied, you can tackle bolts in tight spaces without hassle. Maximize reach and efficiency. Ideal for working in tight engine bays. Widely Compatible: This wrench extender tool bar supports a wide range of wrenches, including Hex wrenches , hexagonal wrenches, TX/, socket wrenches, etc. Up to a maximum size of 0.7 inches (18 mm). Whether it's for routine repairs, car maintenance or industrial projects, this wrench extension tool bar is a reliable and practical tool. Color: As Shown Material: High-Carbon Steel Package Contents: 1 x Wrench Extender Tool Bar(wrench not included) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.