At my wife's daycare i do a tool class for the 4 year old's . One day i did a class on hammers one of the mothers said to me how many hammers dose a man need, then told me how mad she would be if her husband had more than one hammer.So i showed her the hammers i used for the class around 20 of them with explanations for all of them, she said i never knew that, while looking each one of them over again and again . this was just one story i like to tell if someone brings up hammers . Northmounts explanation is all you should need it's right on .