I'm pretty sure it's "kief"

Look at this:
http://www.everyonedoesit.co.uk/onli...CategoryID=730

But I really want to try a kief tumbler. I think I can make one for much less than $518 though.
http://www.everyonedoesit.co.uk/onli...CategoryID=776

The consenses seems to be silkscreen to sift out kief. There are many sizes. I noticed the tumbler above uses 150 micron. Is this how silkscreen is measured, and is this the right size?
Opie Yutts Reviewed by Opie Yutts on . kif collecter i like kif more than anyother thing...i like it cause you can snort it and smoke it and parachute it....but my kif dealer has moved outta town....OOOH NOOO!!...lol...so i cant get my own...does anybody know how i can make a kif collecter...please help im desperate...and cheap...im 16 so i cant go to a head shop but i might just end up gettin someone else to go for me...but thats not the point...please ppl help me out:confused: Rating: 5