Set of 27 metric sized impact sockets. Forged from chrome moly steel. Hardened and tempered for enhanced durability. • Sizes: 17, 19, 20, 21, 22, 23, 24, 27, 30, 31, 32, 33, 34, 35, 36, 37, 38, 40, 41, 45, 46, 48, 50, 54, 55, 57 and 60mm• 3/4″ Drive• 6 Point• Overall length: from 51 – 73mm• Material: 42 CR-MO for strength• Hardened: HRC 45 for durability• Finish: Black phosphate for protection