Milwaukee SHOCKWAVE� Pozidriv Impact Duty Bits are ideal for heavy-duty impact applications. They also deliver a full system solution that covers all drilling and fastening needs. Made from custom engineered steel, Milwaukee's custom metal formula makes SHOCKWAVE� bits more resistant to shock from impacting. SHOCK ZONE� geometry reduces stress at the tip resulting in less tip breakages. The combination of the SHOCK ZONE� design and special heat treatment absorbs impacts and allows the bit to flex with spring like action. The precision milled tip provides the best fit within the screw head, reducing cam out and stripping, resulting in outstanding lifetime. 1 x Pack of 25 Milwaukee SHOCKWAVE� Impact Duty Bits PZ2 x 25mm.