Brass cleaner
The best I have found I Krazzy Kloth cotton just put your shell on a case spinner on drill and one pass then a polish with paper towel. brass is spotless shinny clean i get mine from Sinclair Interenational also ebay
Hands down this is the best cleaning cloth we have found for our nickel plated jewelry.
There are super-activated chemicals fused into every fiber of this cleaning cloth. Just pick up KRAZY KLOTH® and whisk through the work. No more rubbing and scrubbing.
Clean and Polish: Copper, brass, chrome, nickel, steel, aluminum, bronze, even remove rust marks, paint, specks, and bad corrosion.