Manufactured from hardened and tempered Chrome Molybdenum steel with a manganese phosphate finish for resistance to corrosion. 3/8"Sq drive impact hex socket bits with an additional locking 1/2"Sq drive quick change adaptor. Supplied in an EVA storage tray. Features & Benefits:Manufactured from hardened and tempered Chrome Molybdenum steel with a manganese phosphate finish for resistance to corrosion.3/8"Sq Drive impact hex socket bits with an additional locking 1/2"Sq drive quick change adaptor.Contents: 3/8"Sq Drive Hex Socket Bits; 5, 6, 8, 10, 12, 14, 17mm, 1/2"Sq Drive Quick Change Adaptor. Supplied in an EVA storage tray.Lifetime guarantee*.Model No. AK5620 Specifications: Model No AK5620 Brand: Premier Contents: 3/8"Sq Drive Hex Socket Bits; 5, 6, 8, 10, 12, 14, 17mm, 1/2"Sq Drive Quick Change Adaptor. Nett Weight: 0.56kg