Constructed from a premium S2 alloy steel that provides you a superior hardness that reduces any wear-outs and ensures that your bit sockets last through multiple usages. Spend less time loosening tight fasteners Our high strength chrome vanadium steel socket provides superior torque for extra turning power and the beautiful chrome finish is resistant to any type of weathering. Bits are longer in length to give you access to hard to reach areas where you can not normally reach. Our precisely machined bits are accurate in size and include chamfered ends that smoothly fits into fasteners and protect both the bits and the fastener of any damaged edges. Beautiful chrome finish socket is resistant to any type of weathering making it easy to clean and lasts through normal wear and tear. Includes blow molded case so you can quickly store your socket bits in its perfect condition. The case has a slim profile so you can store it in your tool bag for quick transport between jobs.Included Sizes:1/4 in. Drive : 4 mm, 5 mm, 6 mm3/8 in. Drive : 8 mm, 9 mm, 10 mm, 12 mm, 14 mm(TAMPERPROOF)1/2 in. Drive: 16 mm(TAMPERPROOF), 18 mm(TAMPERPROOF)1/4 in. Drive (Long): 4 mm, 5 mm, 6 mm3/8 in. Drive (Long): 8 mm, 9 mm, 10 mm, 12 mm, 14 mm(TAMPERPROOF)1/2 in. Drive (Long): 16 mm(TAMPERPROOF), 18 mm(TAMPERPROOF).