Stainless steel grinders are almost impossible to get you hands on. It is a much superior metal that is difficult to machine which is why there are hardly any companies that will do it! That's why we decided to design our own, and our goal was to be the Best Herb Grinder on the market. Other aluminum grinders can't match the performance of The Ripper. With sharp teeth and a durable sifting screen, ALL MADE FROM PURE STAINLESS STEEL, you're guaranteed a consistent grind every time.