Polishing and Deburring
Walnut shells are used in many polishing and/or deburring applications. Walnut shell media is used for polishing or cleaning fine metals, alloys, mechanical parts, shell cartridges, eye glass lens, rocks, stones, coral, ivory, beans, and seeds. Jewelers use walnut shell media treated with rouge in both tumbling and vibratory applications for polishing gems and fine jewelry. When polishing the media size should be small enough to freely pass through openings or large enough to avoid lodging in openings or crevices.