Dewalt dt qz impact screwdriving sets 14 32 34 35 piece dewalt dt70511 qz this 35 piece drilling and screwdriving set from dewalt is a superb addition to any tradesman s collection as it ideal for metal drilling and screwdriving applications it comes in a medium size tough case for convenient storage and portability of the high quality professional screwdriver bits the hss g metal drill bits are precision ground twist drill bits for rapid drilling long life and excellent concentricity