The Wera Impaktor bits are designed for use in all heavy-duty machines, specifically Impact Drivers. Thanks to the best possible utilisation of the material properties and optimally designed geometry added to the rough diamond coating reducing the danger of any damaging cam-out of the screw head, Impaktor will dramatically extend bit service life. Incorporates Wera's tool finder system, based on coloured band coding for screw profiles (black = Pozidriv; red = Phillips etc) with clear size markings. The Bit-Box slide switch allows simple and gradual removal and reinsertion of the bits. The transparent reverse side provides an easy contents check. Contains 15 x Impaktor Bits PH2 x 25mm. Use with 897 4 IMP Holder for maximum service life (NOT INCLUDED).