Drop-forged Chrome Vanadium steel sockets hardened, tempered and fully polished finish with knurled ring. Bits manufactured from S2 steel. Includes male and female TRX-Star* sockets, security TRX-Star* bits and 3/8"Sq drive bit adaptor. Supplied in EVA foam tray. Features & Benefits:Drop-forged Chrome Vanadium steel sockets hardened, tempered and fully polished finished with knurled ring.Bits manufactured from S2 steel.Includes male and female TRX-Star* sockets, Security TRX-Star* bits and 3/8"Sq drive bit adaptor.Supplied in EVA foam tray.Lifetime guarantee*.Model No. AK6193 Specifications: Model No AK6193 Brand: Premier Contents: TRX-Star* Sockets; 1/4"Sq Drive - E4, E5, E6, E7, E8, 3/8"Sq Drive - E10, 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" & 3/8"Sq Nett Weight: 0.762kg