The Snap-on 1/2" Dr Universal Swivel Impact Sockets are high-quality hand tools designed for automotive use. Made by Snap-on, a trusted brand in the industry, these sockets feature a rounded design for better grip and are available in sizes 7/16, 1/2, 9/16, and 11/16". The universal/swivel design allows for added versatility in tight spaces, making them a valuable addition to any mechanic's toolbox. With the manufacturer part number IMB, these impact sockets are built to last and provide reliable performance for various automotive applications.