Drill for attaching metal screens to metal windows with TEK metal screws indoors. All previous work has been of this nature. I followed the instructions not to force or push the drill to get the job done. I used the right materials and the drill did the job. It worked fine. I like the drill. I've only had her for a few weeks, she's light and so far she's doing pretty well. I only wish he had a second battery and a case. Too much to wish for I think for the price I paid.