Trend SNAP/PZ123 Hexagon Bits (3) Pozi 123 High grade tool steel screwdriver bits, hardened for ultimate wear resistance. The Bits have 1/4in A/F Hex shanks to fit the quick chuck. Set of 3 Bits. Sizes. 1 Pozidriv No.1 Bit 1 Pozidriv No.2 Bit 1 Pozidriv No.3 Bit