General description Sealey AK7994 Premier Black Socket Set is a 13-piece set designed for professional use. Manufactured from hardened and tempered high-grade Chrome Vanadium steel, this socket set features a fully polished black chrome finish that provides excellent resistance to corrosion. It includes a knurled ring for enhanced grip, even with oily fingers, and is supplied on a convenient socket rail. Technical specifications Model No.: AK7994 Nett Weight: 0.97 kg Contents: 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24 mm Material: Hardened and tempered high-grade Chrome Vanadium steel Lifetime guarantee* Other information