SAE Size Labels: 5/32", 3/16", 7/32", 1/4", 9/32", 5/16", 11/32", 3/8", 7/16", 1/2", 9/16", 5/8". ¼" Drive Lock-a-Socket. We focus on making purchasing online a pleasant experience. Our sales office is located in beautiful town of Redondo Beach, California, just a few miles South of Los Angeles International Airport.