Of course I knew this before buying, but just want to make sure others understand what they are buying. The center punch has a sharp point (generally at a 60 degree angle to allow a hammer hit for the drill to dip in so it's not surprised when it starts drilling, that's great, but these are nail sets to get the end nail up to or just to drive under the surface of the wood they can be covered with putty or just held under the surface so nothing can get stuck to it.love the shape/design,very easy