I recently installed a couple of speakers on the wall (two straight and two through the shelves) and it worked with all of them. I used to use anchors that have a point and are driven into the wall. I've seen them without that point and wondered how they level up and now I know! You start with a simple hole (1/4" if I remember) and then some force to push the anchor (it came in handy). After that you use the tool to pull the screw head and open the anchor. I always had to unscrew the included anchors a bit to pick up the tool which was a little frustrating (I was hoping the existing gap would be enough) It added a step to the side, it was very easy to use and the anchors are rock solid I will never use any other anchors again! Highly recommended