Ed_Boysun
Guest
Hi, Do you mean the ones like the Sukup in my pictureIJ You have to change the screens, depending on what you are trying to do. The inside screen on mine is 1_4", so only takes out the really big stuff. The outside one is small enough to let small weed seeds and wheat kernels through. I have just been using it lately to clean my seed wheat. When I first bought it, I used it to clean green weed seeds out of the wheat before it went in to a ground pile. Ed in Montana