Impactor holder with retaining ring and magnet, 29 Impactor bits. The Impactor technology ensures above-average service life by making optimal use of material properties and by having a geometry that is perfectly adapted to the task, even under extreme conditions. It is particularly suitable for use with standard impact and percussion wrenches. The holder with ring magnet allows for easy handling of long and heavy screws and is ideal for overhead work. The rough diamond coating of the bits reduces slippage from the screw due to increased friction resistance.