General description Sealey Premier Total Drive® Socket Set 1/4"Sq Drive 13pc features chrome vanadium steel sockets that are hardened and heat treated for strength. The fully polished mirror finish provides resistance to corrosion, making this set durable and reliable for various applications. It can be used on a wide range of fasteners and is suitable for Spline, Metric Hex, and Bi-Hex, with many sockets also compatible with TRX-Star*, Whitworth, Imperial Hex, and Imperial Bi-Hex fasteners. The knurled ring design offers extra grip, even with greasy fingers, and the set is supplied on a rail for easy organization. Technical specifications Material: Chrome Vanadium steel Socket sizes: 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14mm Model No.: AK69813 Lifetime guarantee* Other information One of a comprehensive range of Premier Hand Tools, suitable for daily professional use.