There is another Phillips type called JIS which stands for Japanese Industrial Standard. As the name implies used by Japanese manufacturers. It is designed with even less "cam out" than Pozidriv. I wondered for years why my Phillips screwdrivers worked so poorly on Japanese screws. The beauty of the JIS screwdrivers is that they will work on Phillips screws and can even remove most Phillips that have been "rounded out". A must have if you work with a lot of Japanese products or Phillips screws.