Upgrade your toolkit with our high-quality 1/2 Inch Square Drive Knuckle Joint, specifically designed for the ys01784 Breaker Bar. This essential component is compatible with Model No. 3 1/2 Inch Square Drive Breaker Bar, providing exceptional durability and performance for all your heavy-duty tasks. **Key Features:** - **Compatibility:** Perfectly fits Model No. 3 1/2 Inch Square Drive Breaker Bar. - **Drive Size:** 1/2 Inch Square Drive for versatile applications. - **Lightweight Design:** Weighs only 0.07 kg, making it easy to handle and maneuver. Whether you're a DIY enthusiast or a professional tradesperson, this knuckle joint is designed to withstand rigorous use while ensuring maximum efficiency. Explore our extensive range of tools and workshop equipment, featuring over 10,000 products suitable for any job, big or small. If you need assistance finding the right tool, don't hesitate to reach out to our friendly customer service team, who are always ready to help you find what you need.