One of the most comprehensive driver and security bit sets available. High quality Chrome Vanadium steel bits. Includes quick release chuck. Suitable for a wide variety of applications. Contents: Bits; Slotted Driver (x9), Phillips Screwdriver (x5), Pozi Screwdriver (x5), TRX-Star* (x9), Security TRX-Star* (x9), Security Hex - Metric (x6), Butterfly (x3), Spanner (x4), Spline (x3), Torq (x3), Tri-Wing (x4), Automatic Quick Release Bit Holder, 1/4"Sq Drive Socket Adaptor (x2). Supplied in storage case. Lifetime guarantee*. Model No. AK2108