KomeStone Professional Rock Polisher Tumbler Kit vs Thumler's Model B Rotary Tumbler

Buy the KomeStone for a first tumbler or a gift for a kid: it is a small 2.5 lb kit with grit and a starter bag of rocks, and owners rate it 4.3 out of 5. Buy the Thumler's Model B if you tumble seriously or polish brass: its 15 lb steel barrel, rubber liner and thermally protected motor are built for schools, labs and reloaders. The KomeStone is a plastic hobby unit that will not last like the Thumler's, and the Thumler's 3,000 rpm motor is too fast for the final rock polish stages.

• Choose the KomeStone if you want an affordable, ready-to-run starter kit for a child or a beginner and small batches are enough.
• Choose the Thumler's Model B if you need large batches, long motor life, or a tumbler that also polishes brass cases.