MJR Tumblers Premium 400/600 Grit Aluminum Oxide Rock Polishing Grit
Premium 400/600 grit aluminum oxide for third-stage shaping of stones. Compatible with any rock tumbler; American-owned and USA-based. One customer notes it refills the final polishing step well
Highlights
- premium 400/600 grit
- works with any tumbler
- usa-owned company
Pros
- premium quality 400/600 grit
- compatible with any brand of rock tumbler
- third stage shaping performance
- american-owned company
Cons
- mixed polishing results reported by customers
- some users report matte finish instead of shine
- mixed value for money
Best For
Features
- 400/600 grit aluminum oxide for third-stage shaping of stones
- Compatible with any brand of rock tumbler
- 20 lb package of premixed tumbling grit for stage 3 processing