6 pint deep sockets manufactured from chrome vanadium steel, hardened and tempered with a satin finish. Each socket has a knurled ring for extra grip. Supplied on a metal socket rail for secure storage. Display packed. Contents: 10 x Sockets: 4, 5, 6, 7, 8, 9, 10, 11, 12, 13mm Manufactured and tested generally in accordance with DIN3122 and ISO3315 Specifications