Walnut Shell Media: Crushed walnut shell is used as a brass cartridge cleaner and polishing media by many re-loaders. Walnut shell media is great for cleaning brass that is really dirty or heavily tarnished from either spending a lot of time on the ground or being fired multiple times without proper cleaning. Learn More


Corn cob media: Corn cob is one of the more popular medias used by reloaders to polish their brass before reloading. It is tough enough to clean brass that has minor tarnishing, yet soft enough not to damage the casings. If the brass being cleaned is heavily tarnished or has not been cleaned in years, it would be best to use crushed walnut shell media as it is a harder, more aggressive media that will remove the heavier tarnish better than corn cob media. Learn More

Which Media Should I Use? Two important things to consider when choosing a media are the kind of tumbler you are using and how dirty the brass is.


How Long Does Brass Media Last? The useful life span of corn cob or walnut shell brass cleaning media varies depending on how often it is used and how dirty the brass is.

Thumler's Vibratory Tumblers These are industrial versions of Thumler's UV tumblers designed for tumbling rocks but will also work great for polishing brass casings.


Thumler's Model B - High Speed: This is the high-speed version of the Model B designed for polishing brass. You can use the dry media that we sell or use stainless steel pin media in this tumbler.