These sockets are manufactured from chrome vanadium steel with extra chrome plating and mirror polished finish for an extended life with maximum durability. The bits are manufactured from S2 steel for hard wearing use. Packed neatly into a blow moulded case these sockets are perfect for the engineer mechanic DIY enthusiast etc. Specification: 3/8" Drive. Length: 110mm. Torx Bit Sizes: T25 T27 T30 T40 T45 T50 T55 and T60. Mirror polish Finish. Hard wearing. Professional quality. Blow moulded case. Box Dimensions: H 12 cm x W 23 cm x D 6 cm Approx.