I use a SharpStone and I've never had a problem. Even grinds up sticky weed if you giver tits. Also mine has a tich catcher at the bottom so you can treat yourself to a fat bowl of crystals once in a while.
JohnnyZ Reviewed by JohnnyZ on . Some of the best grinders on the market? Hey all. long time lurker, don't really post much =P anyways, i have a half plastic/half metal 4 stage grinder but the top portion of the grinder is threaded so it's time to buy a new grinder. i had a cheap ass complimentary grinder from a head shop but a few of the grinder prongs (?) have broken off. It was cheap aluminum and I even think that aluminum flakes were getting in my green =( my buddy has a diamond grind and i really, really like it. hopefully my headshop will have one when Rating: 5