Description on socket rail includes the following tools: T-Star Plus sockets, 6.3 mm (1/4") drive: 6EP - 7EP - 8EP - 10EP - 11EP - 12EP Technical data Drive profile Internal square Drive profile size, metric 6,3 mm Drive profile size, inch 1/4 " Material Chrome Vanadium Steel Packaging suitable for wall hanging Yes Gross weight 150 g