TORX Socket Set E4-E16 CrV 1/4" & 1/2" Drive 9pcs. Set mounted on Rail Organizer. Product Features Chrome Vanadium Steel forging for strength & durability Set includes 8-piece E-TORX Sockets: 1/4" Sq. Drive Sockets: E4, E5, E6, E7, E8 1/2" Sq. Drive Sockets: E10, E12, E14, E16 Technical Data Size System: Metric Socket Type: TX Size Range: E4 - E16/li> Drive Size: 1/4 inch, 1/2 inch Material: Chrome Vanadium Steel Finish: Chrome Satin