I have one of these new peepholes for my front door, you know they are about 2.25 inches wide. Well, I didn't like any. the end was so free to move and i wanted to drill a stepped hole and it was a drill that i first of course drilled into my 1.75 cm thick solid wood front door with a hand drill. This kid ate the tree. These bits aren't usually meant for manual mode, but I didn't have a choice. Eat, eat champ, champ, swallow. I had no problem getting what I wanted with this beat. I know it will