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Rock Tumbling Kit
VEVOR Rock Tumbler Kit 1lb Rock Polisher Rough Gemstones 4 Polishing Grits
Grinding Weight:
1 lb
Color:
Black Orange
product shape:
Front Placement
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Questions and Answers
1
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or
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Q:
What are the RPMs at the various speeds?
Answer This Question
A:
1st gear is 100 rpm, 2nd gear is 115 rpm, 3rd gear is 130 rpm, and 4th gear is 145 rpm.
By vevor
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