Otter Rock Tumbler Timer

By Christine McCormickLiddle on AppTrack Ninja.

Tumbling timers & rock journal

Rock tumbling is magical — but it takes weeks, and it's easy to forget which stage you're on or when it's time to change the grit. Otter Rock Tumbler Timer keeps a friendly countdown for every tumbler you own and taps you on the shoulder exactly when each step is done, so your rocks come out beautifully polished and nobody has to babysit the calendar. Made for families and hobbyists, it turns the long wait into a fun adventure you can watch unfold. WHAT YOU CAN DO • Track as many tumblers as you like — each one runs its own batch of rocks. • Follow the four grit stages (Coarse, Medium, Fine, …

Categories: Utilities, Education

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