so i got out the makins clay extruder and the poker chip grinder and decided to see how this works. first i took some of venus and raven's shake i still have in a bag and ground up a big pile. then i put a dime in the tube part of the tool and the 2 discs with the smallest holes in the cap. i put about a half inch of shake in the tube and then screwed the piece with the 2 discs/cap back on and started turning the handle and pressing it down. i turned it until it went tight and every couple minutes i got another 1/8 turn out of it. when i took the cap off, this is what came out about 15 minutes later. you do have to be careful with this thing as it only made out of aluminum and it will break if you tighten the shit out it. but it does work, so when i get some cuttins off these 2 girls, im gonna make some more. so for $21, not a bad little piece. now im gonna smoke it and see what happens, LoL.