Manufactured from hardened and tempered Chrome Molybdenum steel with a fully polished mirror finish. Suitable for use with extension bars and ratchet wrenches. Ideal for applications where access is limited. Supplied in storage case. Features & Benefits:Manufactured from hardened and tempered Chrome Molybdenum steel with a fully polished mirror finish.Suitable for use with extension bars and ratchet wrenches.Ideal for applications where access is limited.Sizes: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24mm.Supplied in storage case.Lifetime guarantee*.Model No. AK59891 Specifications: Model No AK59891 Brand: Premier Contents: 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 24mm Drive: 3/8"Sq Nett Weight: 1.08kg