Milwaukee 1/2" Drive 5/16" Deep Socket w/FOUR FLAT™ Sides is designed for versatility, making it an essential tool for both professionals and DIY enthusiasts. This socket features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities, enhancing safety and convenience during use. The size is clearly stamped on the socket for quick and easy identification, saving you time on the job. Its optimized geometry reduces the risk of bolt rounding and stripping, ensuring a secure fit and reliable performance every time. Model Number: 45-34-9133