I bench mounted a cheap drill horizontally, wired to a foot pedal controller for hands-free operation. I use a wire brush attachment from a dremel tool kit to clean primer pockets for an entire batch. Then I swap out the brush for a Lee 3 jaw chuck mounted on the stud Lee for some reason sells separately. I can then whip through batches of brass where I use a caliber-specific Lee length gauge mounted on the ball trimmer, chamfer/ deburr simultaneously using a Lyman tool I recently found that does both in one shot, brush the inside, steel-wool the outside with 000 Fine, then wipe the case down with a paper towel.
The Zip trim made things a little faster but the setup above is wicked fast now.