This is a MUST for cleaning pistol brass or small caliber brass.  It comes with a STM Media Separator to help in separating the media from the brass.  Use a universal decapping die and this will clean the primer pockets and make them look like new. 

• -Cleans 2-4 lbs. of brass.  Click Here for Quantities
• -High Speed Tumbler cleans cases in about 3-4 hours max
• -Comes with Media Separator for easy clean-up
• -Media won't rust or wear out

The media size is .047"x.255".  This will work for all caliber sizes and it will clean the primer pockets the best.