Milwaukee 1/2" Drive 11-mm Deep Socket w/FOUR FLAT™ Sides is designed for versatility. This deep socket features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities, making it easier and safer to use in various applications. The socket size is clearly stamped 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 longer tool life. This reliable and efficient socket is a great addition to any toolbox. Model Number: 45-34-9135