RCBS Primer Pocket Brush Small
 
These stiff metal brushes from RCBS are sized and designed to remove the spent primer residue from the primer pockets after the cases have been deprimed. A couple of twists of the brush and the case is ready for a new primer. Separate brushes for large rifle/ large pistol primer pockets and small rifle/small pistol pockets. Brushes have a standard 8-32 male thread, and fit the Sinclair Accessory Handle #09331S or many other brands of handles.