11-Piece External Torx Female Torx Star E-Socket Set T4 - T18 - Taiwan Professional-grade sockets for automotive, motorcycle, bike, computer, consumer electronics Fits bolts commonly referred to as external or female Torx, star, E-socket 5 sizes 1/4" square drive: T4, T5, T6, T7, T8. 5 in 3/8" square drive: T10, T12, T14, T16, T18 Strong & durable chrome-vanadium steel alloy. Excellent quality - made in Taiwan Includes metal storage rack with steel spring clips