Extended insert socket bit line allows for expanded reach into deep, recessed and/or narrow spaced. Made from S2 Tool Steel with proprietary heat treat for superior strength and durability, Mayhew's socket bits have a precision tip profile for positive and precise fastener engagement. A titanium nitride coating provides added strength and wear resistance. All bit sets feature a convenient color coded storage rail that keeps them organized, easily identified, and ready for use. Available in a range of sizes and styles.