One-piece Chrome Vanadium steel socket bits. Sockets are heat treated, chrome plated and satin finished. Knurled rings assist the gripping of the sockets with oily fingers. Supplied on socket rail. Features & Benefits: • Forged Chrome Vanadium steel sockets with Chrome Vanadium one-piece steel hex bits. • Knurled ring to assist gripping socket with oily fingers. • Contents: 8, 10, 12, 14, 17, 19mm. • Supplied on socket rail. • Lifetime guarantee*. • Model No. AK6561 Specifications: Model No AK6561 Brand: Premier Contents: Hex Socket Bits; 8, 10, 12, 14, 17, 19mm Drive: 1/2"Sq Maximum Length: 42mm Minimum Length: 40mm Nett Weight: 0.58kg