29pc TRX Star Socket and SECURITY Bit Set1/4" and 3/8" Square Drive Male and FemaleDrop-forged Chrome Vanadium steel sockets hardened, tempered and fully polished finish with knurled ring. Bits manufactured from steel. Includes male and female TRX-Star sockets, security TRX-Star bits and 3/8"Sq drive bit adaptor. Supplied in storage caseFeatures: Drop-forged Chrome Vanadium steel sockets hardened, tempered and fully polished finished with knurled ring. Bits manufactured from steel. Includes male and female TRX-Star sockets, Security TRX-Star bits and 3/8"Sq drive bit adaptor. Supplied in storage case. Lifetime guarantee . Specification: Contents -TRX-Star Sockets; 1/4"Sq DriveE4, E5, E6, E7, E8, 3/8"Sq DriveE10, E12, E14, E16, E18, E20, TRX-Star Socket Bits; T10, T15, T20, T25, T27, T30, T40, T45, T50, T55, Security TRX-Star Bits; T10H, T15H, T20H, T25H, T27H, T30H, T40H, 3/8"Sq Drive x 1/4"Hex Drive Adaptor Drive -1/4" and 3/8"Sq Net Weight -1.00kg Further Information We sell a wide variety of tools and workshop equipment for both the DIY and Professional markets. Alias: ys01353 Loops 29pc TRX Star Socket & SECURITY Bit Set - 1/4" & 3/8" Square Drive Male & Female