The Britool E113901B 1/4in bit set, comprising of 19 pieces: 3 x Slotted Bits: 4, 4.5 and 5.5 mm.2 x Phillips Bits: PH1 and PH2.3 x Pozidriv Bits: PZ1, PZ2 and PZ3.6 x TORX Bits: T10, T15, T20, T25, T30 and T40.4 x Hex Bits: 3, 4 , 5 and 6mm. The set also includes a magnetic bit holder.