The 4-pc Half Size Metric Flip Socket Set, No. 96120, from Cal-Van Tools is designed to remove inflated, damaged, or warped chrome capped lug nuts, found on most domestic and foreign vehicles. This set includes a 1/2" drive and 3" extension bar. Made from chrome molybendum steel for additional strength and durability. Can be used with an impact rated power tool. The set's black oxide finish resists rust and corrosing.