Draper Coloured Screwdriver Bit Set With Magnetic Holder (13 piece)25mm 1/4" bits manufactured from hardened and tempered, S2 steel, which is applied with a satin chrome finish. Each screwdriver bit is attached with a plastic coloured ring for easy identification. Supplied in a convenient storage case, which opens up for easy access to the bits. Bit holder has a quick release collet, which allows bits to be expelled quickly and efficiently.PRODUCT DIMENSION:Height (mm) :172Width (mm) :132Depth (mm) :26