Must own classic Metallic CNC Aluminum Grinder. its diamond shaped teeth are optimally & evenly distributed for easy and efficient grinding. Herb grinder/crusher is an invaluable & indispensable tool to own when it comes to grinding your spices, herbs, tobacco and etc. Each grinder is individually tooled with CNC machinery and its diamond shaped teeth are optimally & evenly distributed for easy and efficient grinding. The next chamber contains a stainless steel micro mesh screen which allows only pollen to fall through into the last chamber, the pollen catcher.