Skip the bucket and modify one from your hardware store - Frankford Arsenal Quick-n-EZ Rotary Sifter Kits

This is the second Frankford Rotary Sifter I purchased. This one will be used for wet tumbling and the other is reserved for dry. They both work well for my purposes.

The included bucket pivot clips and clip on shields are not great. The pivot clips do tend to slide around some and the shields are kind-of in the way. I recommend skipping the bucket option and getting one from your local hardware or restaurant; 5 gallon sized is what I use. Others have added a screw to the pivot clips to hold them in place which is OK but doesn't address the issue with the shields. Instead, remove the handle from the bucket. Use a hole saw a bit larger than the basket pivots to drill a hole in the bucket where the handles were attached (assures the holes are 180 degrees apart). Use a saw to create a slot to the top edge of the bucket the same width as the hole you just drilled. With this simple modification, the basket drops into the bucket several inches eliminating the need for the shields and keeps the basket centered in the bucket for easy turning.