Reddit reviews Santa Cruz 4 Piece Aluminum Herb Grinder Black Small 55mm

I bought mine from my local head shop, but this is the best grinder I have ever had, and refuse to go back. I used to love Sharpstones til I switched to this. The dude at the head shop told me everything is medical grade materials. It has different teeth, so there isn't the clumpiness that other grinder have. The teeth are very sharp, and cut through everything no problem. Magnets are strong so when I've dropped it, it all stays together. Can't say enough good things about this grinder.
http://www.amazon.com/Santa-Cruz-Aluminum-Colored-Grinder/dp/B00701B0QU/ref=sr_1_1?ie=UTF8&qid=1345908743&sr=8-1&keywords=santa+cruz+grinder