Also fast. Half of that is of course the puncher I used. What is good. But seriously, the drill did its job perfectly. The cut surface was not damaged afterwards, that's all. On a whim I measured the hole with calipers to see how close it was to 1/2 and my goodness! It was 1/2. The wedge anchors had no extra room and enough biting surface to do their job perfectly. I recommend!