Summary: I recently purchased this drill despite the warnings I have read here related to chuck run out. After charging the battery and firing the drill up for the first time, I was disappointed to find that the chuck was dooing the hula! There are 2 key characteristics for a power drill, the first is that it is powered, the second is that it rotates concentrically around its central axis. Unfortunately this drill did not meet these basic requirements.
Summary: Drill endurance is terrible. 5 year old Panasonic 15.6 volt and 3 year old Ryobi 18 volt beat it up everyday. Protocol is 3 battery swaps in an 8 hour work day. It's only 6 months old. Bottom line, A RYOBI OUT-PERFORMS IT! My co-worker calls it a yellow Ryobi and laughs at me everytime it dies in action. I will continue to use it because it cost 199 dollars and I cannot afford to try my luck with something else right now.