Milwaukee 1/4" Drive 13-mm SAE Socket w/ FOUR FLAT™ Sides is designed for versatility, making it an essential addition to any toolbox. This socket features four parallel flat sides that help prevent rolling and provide wrench-ready capabilities for added convenience. The size is clearly stamped on the socket for quick and easy identification, saving you time during your projects. Its optimized geometry minimizes bolt rounding and stripping, ensuring a secure fit and reliable performance every time you use it. Whether you're a professional or a DIY enthusiast, this socket durability and efficiency to get the job done right. Model Number: 45-34-9039