How can I order more polishing grits?

We have a polishing grits kit of 4 lbs, just visit the link: https://www.amazon.com/dp/B0B74KYP44. For any questions and concerns, please contact our customer service via: support@komestone.com, we'll get back to you very soon. For any issues about this rock tumbler, we promise to solve timely. We are standing behind our brand and products. Thanks for purchasing from us.

How much polishing grits should I use?

For better results, we would advise you to add 2 tbsp or more of polishing grits per pound of rocks, and 0.5 lb-1 lb of the ceramic pellets for protect rocks from scratches.

What is the rotation speeds per minute?

Normally speaking, the speeds is quite steady. Speed 1：770 Speed 2：920 Speed 3：1080

Can I add more than 3 lbs rocks into this barrel for tumbling?

The capacity of the barrel for the K2 Elite rock tumbler is 3 lbs, so you can add as much as 3 lbs of rocks, and then add water, and polishing grits and ceramic pellets. For any questions and concerns, please contact our customer service via: support@komestone.com, we'll get back to you very soon. For any issues about this rock tumbler, we promise to solve timely. We are standing behind our brand and products. Thanks for purchasing from us. Anne.

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K2 Elite Professional Rock Tumbler Kit, Ultra Quiet & Cutting Edge Brushless Motor Rock Polisher for Adults & Rock Collector, Noise-Reduction, Extra Large 3 Lbs Barrel, STEM Gift for All Age

K2 Elite Professional Rock Tumbler Kit, Ultra Quiet & Cutting Edge Brushless Motor Rock Polisher for Adults & Rock Collector, Noise-Reduction, Extra Large 3 Lbs Barrel, STEM Gift for All Age

Product ID: 542553468

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Details

Brand
KomeStone
Included Components
(function(f) {
Material
(function(f) {
Color
A: K2 Elite &
Power Source
Corded

🔇Ultra-quiet brushless motor

🧪4-stage professional polishing grit system

⚙️3 lbs extra-large barrel capacity

Description

💎 Transform rough stones into dazzling gems—silently and effortlessly!

PRO GRADE POLISH - Advanced 4-stage grit system delivers museum-quality shine, unlocking your inner gemologist.
STEM MEETS STYLE - Ideal educational tool for kids and creative adults, blending science with hands-on artistry.
WHISPER QUIET POWER - Cutting-edge brushless motor ensures noise levels as low as a dishwasher, perfect for home or shared spaces.
MAX BATCH BRILLIANCE - Generous 3 lbs soft rubber barrel lets you polish more stones per cycle, accelerating your collection growth.
HASSLE FREE CONFIDENCE - Backed by a 90-day satisfaction guarantee, 1-year warranty, and lifetime accessory support from US-based customer care.

The K2 Elite Professional Rock Tumbler Kit features an ultra-quiet brushless motor and a large 3 lbs soft rubber barrel for efficient, noise-reduced polishing. Equipped with a 4-stage grit system and precision ceramic media, it delivers professional-grade gemstone finishes. Perfect for hobbyists, educators, and collectors, it includes all necessary accessories and is supported by a 90-day satisfaction guarantee and 1-year warranty with lifetime accessory replacement.

Specifications

Color	A: K2 Elite (Brushless Motor & Noise Reduction)
Material Type	Comes with 2-year warranty, for any issues or if you need an additional bag of rocks for spare use at no cost, please reach out to us., Stainless Steel, Cutting-Edge brushless motor, Tyre grade rubber, 𝐂𝐏𝐒𝐈𝐀 & 𝐂𝐏𝐂 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝
Specific Uses For Product	Rock collecting, Polishing gemstones, Geology education for kids
Power Source	Corded Electric

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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