14-Piece Nut Bolt Extractor Socket Set.

This set is designed to remove damaged, rusted, or stripped nuts, bolts, and screws. It typically includes various sizes of extractor sockets and an adapter for use with different drive sizes, such as 3/8-inch square drive. The sockets often feature a special internal thread design or fluted design to grip and extract the damaged fasteners. These sets are commonly used for automotive repairs, home maintenance, and other projects where stubborn or damaged fasteners need to be removed.