5 articles
Tumblers & Polishing Supplies
Side-by-side guides on rotary tumblers from $35 starter models to serious Lortone units, plus grit kits, media, and stage-by-stage timing tips. We point out what owners consistently praise — and what they wish they'd known before buying.
Side-by-Side: Rotary Rock Tumblers From $37 to $242 — Which Barrel Size and Motor Actually Delivers
A plain-language comparison of rotary rock tumblers across four price tiers, with barrel-size math and clear decision rules to help you buy once and buy right.
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Running Two Stages at Once: The Case for Dual-Barrel Tumblers and How to Load Them Right
Upgrading to a dual-barrel rock tumbler lets you run two grit stages simultaneously, cutting your cycle time nearly in half. Here's how to choose the right
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National Geographic Rock Tumbler Family Compared: Hobby, Starter, Professional, and Platinum — Which One Is Actually Worth It
National Geographic makes four rock tumblers at very different price points. Here's an honest breakdown of what each one actually delivers — and which is worth
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Stocking Your Barrel: How to Choose Rough Stones That Actually Polish Well in a Rotary Tumbler
Not every rock belongs in a tumbler. This guide helps you pick rough specimens that will actually come out polished and beautiful — and skip the ones that will
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Grit Kits Ranked by Value Per Pound: What the Stage Timing Numbers Tell You Before You Buy
Not all rock tumbler grit kits are priced the same per pound — and the stage timing each kit recommends tells you more about long-run cost than the sticker
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