Hex impact screwdriver bits with increased strength compared to standard screwdriver bits. Specially designed geometry with a narrowed profile, twisting during operation absorbs maximum torque. Thanks to this, both the screwdriver bit and the screw itself are protected against damage. For use in impact screwdrivers or drill-screwdrivers, which significantly accelerate the work. Especially recommended for high-frequency and heavy-duty applications. Necessary for demanding and long-term workshop works as well as renovation, construction or carpentry.