Two Piece Grinders are simple to use and extremely effective for vaporizing. The coarse grind keeps the plant matter as intact yet provides the airflow plenty of ways to get through. 

Using a grinder to prepare your herbs for vaporizing increases efficiency by [insert a huge percentage here]. 

Obviously, we think highly of these valuable tools!

If you would like the quality at a lower price, the two piece is for you. Our best recommendation: Cosmic "Small" Two Piece Grinder.