These expert quality 25mm 14 bits have been manufactured from s2 steel which is hardened and tempered with a satin chrome finish attached with a plastic coloured ring for easy identification supplied in a convenient storage case which opens up for easy access to the bitscontents 1 x quick release bit holder 2 x plain slot 4 and 6mm 2 x cross slot no1 and no2 and 3 x pz type no1 no2 and no3