These tools solve the problem of removing rounded, damaged or corroded hex nuts. Tapered left-handed threads grips straight nuts or tapered lug nuts. Also, for removing automobile wheel locks when the key is not available.Includes all twelve (12) sizes of our Damaged Nut Remover Impact Sockets #5 (1/2", 13mm) to #18 (1-1/16", 27mm).Use with a 1/2" drive impact tool. Overall length: 1-1/2"