This 15-piece precision screwdriver set from Neilsen includes a range of flat, Phillips, and Star (Torx) bits. The set is supplied in a case for convenient storage and transport. It features flat head sizes of 1.5, 2, 2.5, and 3mm, Phillips head sizes of Ph000, Ph00, Ph0, and Ph1, and Star (Torx) sizes of T6, T7, T8, T9, T10, T15, and T20.