Getting a Great Finish with Barrel Grinding
If you're working with a bucket full of small metal parts that have sharp edges or a dull finish, barrel grinding is probably going to be your best friend. It's one of those "old-school" processes that has stuck around for a reason—it just works. It's essentially the industrial version of a rock tumbler. You throw a bunch of parts into a drum with some abrasive material, let it spin for a while, and when you open it up, the parts look ten times better than when they went in. ...