I opened the new nest on the door of my closet in less than 30 seconds and really without any effort, almost just with the weight of the drill. The only thing you need to keep in mind is to hold the drill vertically. The thickness of the drill is the guide for how deep to drill so as not to come out on the other side and it helps to keep the drill vertical. Excellent purchase!

Awesome. First time I needed to make a hole for a hinge and I succeeded on the first try without any problem. It doesn't get stuck and makes a uniform hole.
A tip for beginners like me: Slowly and with pressure at the beginning to form the circle and once it goes in a little and stabilizes, you can proceed at a moderate speed and in half a minute you're done.