How do I use the different speed settings on the National Geographic Rock Tumbler?
Based on the provided manual for the National Geographic Rock Tumbler Kit, there is no mention of multiple speed settings; the instructions focus primarily…
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National Geographic Rock Tumbler Kit INSTRUCTIONS Manual — questions & answers
Read product questions and troubleshooting answers linked to National Geographic Rock Tumbler Kit INSTRUCTIONS Manual.
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How do I order a replacement lid for my National Geographic 2lb rock tumbler?
To order a replacement lid or other spare parts for your National Geographic Rock Tumbler, you should contact the manufacturer's customer service department directly.…
How long does it take to polish the rocks in the National Geographic Rock Tumbler Kit?
The suggested tumbling times for each grit in the National Geographic Rock Tumbler Kit are as follows: - Grit #1: 3-5 days (until the…