Drop-forged Chrome Vanadium steel sockets. Hardened, tempered and dual satin/chrome finish with knurled ring. Bits manufactured from S2 steel. Supplied in storage case. Features & Benefits: • Drop-forged Chrome Vanadium steel sockets. • Hardened, tempered and satin/polished finish with knurled ring. • Bits manufactured from S2 steel. • Supplied in storage case. • Lifetime guarantee*. • Model No. AK619 Specifications: Model No AK619 Brand: Premier Contents: TRX-Star* Sockets; 1/4"Sq Drive - E4, E5, E6, E7, E8, 3/8"Sq Drive - E10, E11, E12, E14, 1/2"Sq Drive - E16, E18, E20, E22, E24, Male TRX-Star* Bits, Standard & Long; T20, T25, T30, T40, T45, T50, T55, Drive Adaptors; 3/8"Sq x 10mm Hex, 1/2"Sq x 10mm Hex Drive: 1/4", 3/8" & 1/2"Sq Nett Weight: 1.31kg