Choosing the right tumbler media for brass helps improve cleaning efficiency, reduce polishing time, and extend brass life. This guide highlights top options designed for brass cases, including cleaning media, polishing compounds, and durable media types. Each product section includes actionable details to compare performance, compatibility, and longevity. Whether you reload regularly or clean a batch of brass for storage, these media choices cover ammonia-free options, walnut shell abrasives, steel pins, and ceramic media for different tumbler setups.
| Product | |||
|---|---|---|---|
| Flitz Tumbler Media Additive – 7.6oz | Liquid Brass Cleaner | Speeds up cleaning and deoxidizing | Brass cases, ammonia-free |
| Flitz Tumbler Media Additive – 16oz | Liquid Brass Cleaner | Half the tumbling time, long-lasting protection | Brass cases, ammonia-free |
| 2.5 lb Stainless Steel Tumbling Media Pins | Stainless steel pins | Powerful cleaning and polishing for brass | Vibratory tumblers, brass cleaning |
| Hazelnut Shell Abrasive Media 18/40 | Hazel Shell media | Gentle polishing with oxidation removal | Brass cleaning in vibratory/rotary tumblers |
| Phoenix Walnut Shell Medium Course | Walnut shell | Natural cleaning, tarnish removal | Brass cases, gentle polish |
Flitz Tumbler Media Additive – 7.6oz

Made in the USA with German-engineered ingredients, Flitz offers a brass cleaner and polish that cleans, polishes, and deoxidizes. The additive is ammonia-free and designed to cut tumbling time in half. Just add 1–2 capfuls per load to achieve faster cleaning and a protective coating that lasts up to six months. It is positioned as a versatile option for brass cases, copper, and other metals in tumblers.
Flitz Tumbler Media Additive – 16oz

This larger bottle mirrors the 7.6oz formula with a focus on cutting tumbling time and providing long-lasting protection. The ammonia-free formula continues to deoxidize brass and remove oxidation and powder residue. It remains a USA-made option from Wisconsin, designed to work in conjunction with media to deliver consistent results across brass cartridge cleaning and reloading prep.
2.5 lb Stainless Steel Tumbling Media Pins

Stainless steel 304 pins provide robust cleaning and polishing for brass in vibratory tumblers. Compatible with Frankford Arsenal and other tumbler brands, these pins offer corrosion resistance and a compact diameter of 0.039 inches and length of 0.255 inches. The pins are packed in a sturdy jar, ready for repeated cycles, and are particularly effective for brass cleaning tasks that benefit from micro-abrasion action.
Hazelnut Shell Abrasive Media 18/40

Hazelnut shell abrasive media provides a natural, gentle cleaning action with the ability to remove tarnish from brass. Sized to 18/40, this media is suitable for both vibratory and rotary tumblers. It offers a non-metallic option that reduces scratching while delivering a bright finished look on brass cases, making it a popular choice for reloading prep and polishing tasks.
Phoenix Walnut Shell Medium Course

Crushed walnut shell media offers a natural, gentle cleaning action ideal for brass cartridge cases. This medium-to-course grade is designed for vibratory tumblers and helps remove tarnish and oxidation without harsh abrasion. Walnut shell media can be paired with polishing compounds or cleaners to maintain a bright, smooth surface on brass cases over repeated reload cycles.
Buying Guide: Key Purchase Considerations
- Media type and brass compatibility: Consider whether you need liquids like Flitz for faster cleaning and deoxidizing, or solid media such as stainless pins, walnut shell, or hazelnut shell for physical abrasion and polishing.
- Tumbler compatibility: Check your machine’s type (vibratory vs. rotary) and media size requirements. Stainless pins excel in vibratory systems, while walnut and hazelnut shells work well in both.
- Ammonia-free options: If you prefer safer handling and less odor, ammonia-free formulas (like Flitz) are advantageous for brass and other metals.
- Polishing time vs. protection: Liquids with protective coatings cut tumbling time and extend brass life, but always verify compatibility with your reloading workflow to avoid residues on primer pockets or cases.
- Longevity and reusability: Some media, like walnut and hazelnut shells, can be cleaned and reused, while metals like stainless pins may offer longer service life in repeated cycles.
- Cleaning vs. polishing balance: For some tasks, you may want stronger cleaning with gentle polishing. A combination of media types can yield optimal results—start with more aggressive options, then switch to gentler media for final polish.
- Storage and handling: Proper storage (sealed containers) prevents moisture uptake, corrosion (for metal media), and contamination. Keep liquids clearly separated from dry media when possible.
Overall, the best choice depends on your brass cleaning goals, tumbler model, and preferred maintenance interval. For rapid cleaning and protective benefits, ammonia-free liquid additives from Flitz paired with compatible media can reduce tumbling time. For a gentler touch and economical options, walnut or hazelnut shell media provides solid performance with less risk of scratching, while stainless pins offer deep cleaning on tougher brass without harsh chemicals.