The Blue Spot Tools 12 PCE 1/4″, 3/8″, 1/2″ torx bit sockets (T10-T60) includes twelve spline bit sockets, compatible with 1/4″, 3/8″ and 1/2″ drive ratchets, bars, and extensions. Includes 6 x 1/4″ drive (T10, T15, T20, T25, T27, T30), 5 x 3/8″ drive (T40, T45, T47, T50, T55) and 1 x 1/2″ drive (T60). Each bit socket is manufactured from chrome vanadium and features a knurled grip. Each spline bit is manufactured from S2 steel for increased durability Sockets Manufactured from chrome vanadium for increased durability Bits manufactured from S2 steel Knurled sockets to provide a secure grip Includes socket rail for quick and convenient storage 1/4″ 3/8″ 1/2″ Torx.