Milwaukee 1/2" Drive 9/16" Standard Socket w/FOUR FLAT™ Sides is designed for versatility and convenience. This socket features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities, making your work more efficient. It is clearly stamped with its size for quick and easy identification, so you can find the right tool without hassle. The optimized geometry of this standard socket reduces the risk of bolt rounding and stripping, ensuring a secure fit and reliable performance every time. Model Number: 45-34-9101