The Wera Impaktor bits are designed for use in all heavy-duty machines, specifically Impact Drivers. Thanks to a 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 Toolfinder 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 PZ2 x 25mm Use with 897 4 IMP Holder for maximum service life (NOT INCULDED).