Yeah, those 3 stage tappers are easy to work with, athough I found that if I go with easy and medium, without finish, the screw is somewhat tighter in the hole, I tapped one hole just with the first two, and second with all three, and the screw in the all three tappered hole is more loose... Maybe its because I was tapping the holes holding the copper in my hand, so it wasn't precise...
I'll try it again, just to mount my vice on the balcony (happily, it's a sunny day...)
