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View compareFrequently Asked Questions
- Q: What are the dimensions of the National Geographic Professional Rock Tumbler Kit? A: The dimensions are sixteen point zero six inches in length, ten point eight three inches in width, and five point five one inches in height.
- Q: What is the capacity of the tumbler barrel? A: The tumbler barrel has a two pound capacity, allowing for substantial rock tumbling at once.
- Q: What materials are included in the kit? A: The kit includes one pound of rough rocks, jewelry fastenings, tumbler grit, a large strainer, and GemFoam rock polisher.
- Q: How do I operate the tumbler? A: To operate the tumbler, load the barrel with rocks and grit, set the three-speed motor and timer, then start the machine.
- Q: Is this kit suitable for beginners? A: Yes, this kit is suitable for beginners as it comes with all the essential materials and clear instructions for use.
- Q: Can I use this tumbler for polishing gems? A: Yes, this tumbler includes GemFoam for polishing gems to give them a brilliant shine after tumbling.
- Q: How do I clean the rock tumbler? A: To clean the tumbler, empty the barrel, rinse it with water, and wipe the exterior with a damp cloth.
- Q: Is the rock tumbler safe for kids? A: Yes, the rock tumbler is designed with safety features but should be used under adult supervision.
- Q: What is the best way to store the tumbler? A: Store the tumbler in a cool, dry place and ensure it is cleaned thoroughly before storage to prolong its lifespan.
- Q: How does this tumbler compare to others on the market? A: This tumbler is pro-grade with a three-speed motor, a programmable timer, and is seventy-five percent quieter than most plastic barrels.
- Q: Is there a warranty for this rock tumbler? A: Yes, the tumbler is backed by a warranty, ensuring quality and satisfaction for customers.
- Q: What if my tumbler arrives damaged? A: If your tumbler arrives damaged, contact customer service for assistance with returns or replacements.
- Q: How many different types of rocks are included? A: The kit includes nine different types of rough rocks for a diverse tumbling experience.
- Q: Does the tumbler come with an instruction manual? A: Yes, the tumbler comes with a comprehensive instruction manual to guide you through the setup and operation.
- Q: Can I use this tumbler for large rocks? A: No, the tumbler is designed for smaller rocks, up to an overall weight of two pounds per batch.

