Milwaukee 3/8" Drive 13-mm 6-Point Deep Socket w/ FOUR FLAT™ Sides is designed for versatility and durability. Featuring the innovative FOUR FLAT™ Sides, this socket prevents rolling and is ready to be used with a wrench, enhancing safety and convenience on the job. Its optimized geometry helps reduce bolt rounding and stripping, ensuring a secure grip every time. For quick and easy identification, the metric socket size is clearly stamped into the flat surface, making it simple to find the right tool when you need it. Model Number: 45-34-0013