KomeStone K1 Rock Tumbler Kit - 2.5LB Capacity, Digital Timer, Variable Speeds, Brush Motor, 11.3x9.17x5.87 inches
SKU: 34500979359

KomeStone K1 Rock Tumbler Kit - 2.5LB Capacity, Digital Timer, Variable Speeds, Brush Motor, 11.3x9.17x5.87 inches

Sale price$73.76 Regular price$81.95
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

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Description

KomeStone K1 Rock Tumbler Kit - 2.5LB Capacity, Digital Timer, Variable Speeds, Brush Motor, 11.3x9.17x5.87 inchesThe KomeStone Advanced Professional Rock Tumbler Kit is an innovative geology STEM toy designed for both kids and adults. This versatile rock polisher allows users to transform rough rocks into smooth gemstones while providing an engaging educational experience. Constructed with a high quality Japanese carbon motor, this rock tumbler features a brush motor variant known as K1. The design prioritizes user friendliness and educational value, making it

The KomeStone Advanced Professional Rock Tumbler Kit is an innovative geology STEM toy designed for both kids and adults. This versatile rock polisher allows users to transform rough rocks into smooth gemstones while providing an engaging educational experience.

Constructed with a high-quality Japanese carbon motor, this rock tumbler features a brush motor variant known as K1. The design prioritizes user-friendliness and educational value, making it an ideal tool for learning about geology and patience. The kit includes a full-color illustrated learning guide, ensuring that even beginners can successfully operate the tumbler. With its advanced features, the KomeStone kit is perfect for hobbyists and budding geologists alike.

Key Features:
  • Original Manufacture & Brand Outlet: The KomeStone brand ensures quality with its unique rock tumbler design.
  • Complete Kit: Includes tumbler machine, barrel, 1 lb of rough rocks, three belts, four polishing grits, ceramic filler media, and an instructional book.
  • Enhanced Performance: Equipped with a 9-day timer display, three-speed controls, and pause & resume functions for customized polishing experiences.
  • Extra Large Capacity: The 2.5 lb barrel allows for polishing more rocks simultaneously compared to standard 1 lb drums.
  • Low Noise Operation: Features 100% soft rubber barrels that reduce noise levels by 75%, making it quieter than traditional plastic drums.
  • Educational Value: A hands-on tool for learning about geology, patience, and the art of jewelry making, suitable for all ages.
  • Upgraded User Experience: The LCD screen and various polishing recipes enhance the overall fun and effectiveness of rock tumbling.

The KomeStone Advanced Professional Rock Tumbler Kit is an excellent choice for educators, parents, and rock enthusiasts. This comprehensive kit encourages creativity and scientific exploration, making it a thoughtful gift for all ages. Whether you are polishing rocks for jewelry making or simply enjoying the process of transformation, this tumbler offers a rewarding experience that blends learning with fun.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 34500979359

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Amazon Customer
Draper, US
★★★★★ 1
Not worth it
Color: White, Color: White
Put new batteries in twice and won’t turn on. Such a waste of money.The brightness is little to none , they were working amazing in the beginning. The picture included is the highest setting and has barely any brightness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025
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Gary kirshman
Charlottesville, US
★★★★★ 5
I would buy again
Color: White
Great price and works great, very bright and easy to install
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Reviewed in the United States on September 7, 2025
T
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T. Roberts
Belleville, US
★★★★★ 5
Light Up Your Table
Color: White
Easy to attach and turn on/off
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Reviewed in the United States on July 17, 2025
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irene
Cuba, US
★★★★★ 5
Affordable
Color: White
Very nice
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Reviewed in the United States on June 17, 2025
A
Verified Purchase
Amazon Customer
Port Orchard, US
★★★★★ 1
Not worth it
Color: White, Color: White
Put new batteries in twice and won’t turn on. Such a waste of money.The brightness is little to none , they were working amazing in the beginning. The picture included is the highest setting and has barely any brightness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 14, 2025

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