The Milwaukee SHOCKWAVE™ Impact Duty Bits are specially designed for use with Impact Drivers, but also deliver a full system solution for all drilling & fastening needs. SHOCKZONE™ Geometry reduces stress at the tip resulting in less tip breakages. The combination of the SHOCKZONE™ design & special heat treatment absorbs impacts & allows the bit to flex with spring like action. The compression forged tip provides the best screw head fit, reducing cam out & stripping, resulting in increased lifetime. Made from custom engineered steel, makes the bits more resistant to shock from impacting.