The OTC 6186 is a specialty bit socket with Torx PLUS family profile. Specialty fasteners from the Torx family are used in many aspects of assemblies. Made with two piece construction S2 grade steel, one of the highest quality tool grade steels used in production, this bit socket is designed for endurance. A natural finish ensures that this socket won't crack or peel like many chrome plated versions can. NOTE: This high quality bit socket will provide a lifetime of performance when used with hand tools. Determination of damage by impact tools is subject to OTC evaluation and discretion - NO EXCEPTIONS! Replacement bit sockets are available for sale.