I love these drills. They are well regulated. They have stop rings that let you decide how far you want the drill to go. So the screw is countersunk so you can fill the hole with filler. It's also good, most sets are one size, but this set is 5! Dimensions. Just be careful to drill straight and not bend the drill. Since you can't use a drill, breaking it wouldn't be scary. I totally agree with the photos submitted by other users.