3/8″ Drive Impact Socket Set. 16 SAE sockets (5/16″ to 3/4″) for a comprehensive range of applications. Includes a 3/8″ impact universal joint and a 1/2″ to 3/8″ socket adapter for versatility. Built from materials to withstand the rigors of your toughest tasks, its thoughtful design includes essential features that enhance usability, comfort, and safety.