1 Impaktor holder with retaining ring and ring magnet, 29 Impaktor bits. The Impaktor technology offers an above-average service life even under extreme circumstances thanks to the best possible utilisation of the material properties and the optimized geometry; particularly suitable for use with customary impact drivers; holder with ring magnet for simple holding of even longer and heavier screws, ideal for overhead work. The rough diamond-coating of the bits reduces the risk of a slipping out of the screw head thanks to the enhanced frictional resistance.