The Snap-On Tools No. S8681 Manifold Bolt Socket Wrench is a high-quality hand tool designed for automotive use. With a 12 point box end sized 9/16 inch and 1/2 inch drive this socket wrench is perfect for maneuvering tight spaces and removing nuts and bolts with precision and power. Made in the United States, this single item from Snap-on ensures durability and reliability for all your automotive maintenance and repair needs. Trust in the quality craftsmanship and attention to detail of this professional-grade tool.