1、Multiple Specifications: This hex drive socket set has multiple sizes of sockets, including T10, T15, T20, T25, T27, T30, T40, T45, T47, T50, T55, T60, 1/4‑3/8 adapter, 1/2‑3/8 adapter, and 3/8in universal adapter, which can satisfy your different needs of use. 2、Excellent S2 Alloy Steel Material: This long hex socket set is made of excellent S2 alloy steel material, which is heat treated to provide high hardness and strong torsion. The plating and polishing process provides excellent rust resistance and ensures a long service life. 3、Accurate Size: This long hex bit socket set is accurately sized and chamfered for easy use to guard drill bits and fasteners. Die cut sizes are clearly marked, making it easy to quickly find the right size. 4、Extended Design: This extended hex wrench socket set has an extended shank for easy access to hard to reach areas, which is perfect for mechanical repairs and home improvements. 5、Wide Application: This 3/8in drive long hex bit socket has a wide range of applications, which can be used at home, factories, workshops, DIY, etc., and is very practical.