... , RANGE: 7MM-22MM 3) ISO9001:2000, CCC 3/8" Sq.Dr. DEEP Impact Sockets, 6PT / MM Specifications:7 ... , 8, 9, 10, 11, 12, 13, 14, 15, 16, 17 ... the best combination of strength and impact resistance.Optimum wall thickness design for strength and access on fasteners having ... best choice.Thanks for visiting our website!! 3/8" Sq.Dr. DEEP Impact Sockets, 6PT/MM