Improve the quality of your reloaded ammunition by using the M-1 Case Tumbler to quickly and efficiently clean and polish large batches of cases. When paired with Hornady® Tumbling Media, its cyclonic and vibratory action restores brass to a brilliant shine. After tumbling, the included sifter makes it easy to separate the polished cases from the media. The required running time will vary depending on the condition of the brass and the level of cleanliness you want to achieve.