Quick and Easy Black Powder Ball Mill — Skylighter, Inc.
I''ve used the first of these mills that I got, with the original drive belt, for many, many hours of milling, with only a little oiling of the bushings. Standard length mill times are half an hour for individual chemicals, and 24 hours for highquality black powder. 6Pound, Dual Drum Ball Mill (Skylighter #TL5005)