General description Set of 4 deep, thin wall impact sockets, essential for working on nuts with limited access such as hub nuts. Technical specifications Sizes: 30mm, 32mm, 34mm, and 36mm Drive: 1/2" Points: 12 Point Total length of socket: 78mm Material: 42 CR-MO for strength Hardened: HRC 45 for durability Finish: Black phosphate for protection 30mm socket - O/D of socket end: 43mm, Wall thickness: 6.2mm 32mm socket - O/D of socket end: 45mm, Wall thickness: 6.2mm 34mm socket - O/D of socket end: 48mm, Wall thickness: 6.4mm 36mm socket - O/D of socket end: 51mm, Wall thickness: 6.7mm All sockets - O/D of drive end: 36mm Other information Forged from chrome moly steel. Hardened and tempered for enhanced durability.