The Rolson 28290, 31-piece Precision Screwdriver Set consists of a soft-grip precision screwdriver handle, 30x 28mm screwdriver bits and a resealable plastic/rubber case. Slotted: 1, 1.5, 2, 2.5, 3, 3.5, 4mm Phillips: Ph000, Ph00, Ph0, Ph1, Ph2 Pozidriv: Pz00, Pz0, Pz1 Hex: 0.9, 1.3, 1.5, 2, 2.5, 3mm Star: T4, T5, T6, T7, T8, T9, T10, T15, T20 Rolson type 28290