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C1 Pro Ultra Brushless Rock Tumbler Kit - Double Barrel for Extra Large 7LB Capacity, with 10 Pounds Rock Tumbler Grit Kit

-25% $ 182 .22 $242.97

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Description

C1 Pro Ultra Brushless Rock Tumbler Kit - Double Barrel for Extra Large 7LB Capacity, with 10 Pounds Rock Tumbler Grit Kit

FIRST Dual-Barrel Brushless Rock Tumbler – Only from KoolStone. The first-ever rock tumbler featuring a dual-barrel design and a powerful brushless motor. Belts are wear-and-tear parts that naturally need replacement over time. 𝐓𝐨 𝐤𝐞𝐞𝐩 𝐲𝐨𝐮𝐫 𝐭𝐮𝐦𝐛𝐥𝐞𝐫 𝐫𝐮𝐧𝐧𝐢𝐧𝐠 𝐬𝐦𝐨𝐨𝐭𝐡𝐥𝐲, 𝐰𝐞 𝐩𝐫𝐨𝐯𝐢𝐝𝐞 𝟓 𝐞𝐱𝐭𝐫𝐚 𝐛𝐞𝐥𝐭𝐬—𝐣𝐮𝐬𝐭 𝐜𝐨𝐧𝐭𝐚𝐜𝐭 𝐮𝐬 𝐚𝐭 𝐬𝐮𝐩𝐩𝐨𝐫𝐭@𝐢𝐤𝐨𝐨𝐥𝐬𝐭𝐨𝐧𝐞.𝐜𝐨𝐦 𝐭𝐨 𝐜𝐥𝐚𝐢𝐦 𝐲𝐨𝐮𝐫𝐬.

Advanced Brushless Motor – Faster, Stronger, More Durable: The C1 Pro Ultra is powered by a high-performance brushless motor, delivering faster, more efficient tumbling for a superior polish. Designed for longer lifespan, lower heat, and consistent performance—setting a new standard in rock tumblers.

Dual-Barrel (3.5 lb × 2) – Double Efficiency, Flexible Use: Run two barrels at once to polish more stones or handle different hardness levels simultaneously. You can even run different stages in parallel, reducing total tumbling time and boosting efficiency by up to 100%—without increasing runtime.

Ultra-Quiet Operation – Up to 85% Noise Reduction: Built with a premium rubber barrel and noise-reduction cover, the C1 Pro Ultra significantly reduces noise compared to standard plastic models. Enjoy smoother, quieter tumbling—ideal for home use, even at night.

Smart Controls – Precision & Convenience: Features 4 adjustable speeds and a 9-day timer with auto shutoff and memory function. The unique Cycle Record Button helps you track polishing stages with ease, making the process simple and organized.

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-10%

$42 .99 $47.99

100+ sold last month

Lowest ever

Amazon

HopeRock Ultra Quiet Rock Tumbler for Adults, Kids 8+, STEM Science Kit | Noise Reduction Cover, 3 Speed Settings, 9 Day Timer, Polishing Supplies, STEM Geology Activity, Beginner Friendly, Green

-20%

$39 .99 $49.99

300+ sold last month

Amazon

Dan&Darci Advanced Professional Rock Tumbler Kit - with Digital 9-Day Polishing Timer & 3 Speed Settings - Turn Rough Rocks into Beautiful Gems : Great Science & STEM Geology Toy for Kids All Ages

-20%

$59 .98 $74.99

100+ sold last month

Dan&Darci

Lowest ever

Amazon

1.5LB 12000 Grit Aluminum Oxide for Final Finish, Step 5 Advanced Polishing Tumbling Filler,Rock Tumbler Polish for Micron Finish

-15%

$21 .99 $25.99

Amazon

Rock Tumbler Grit and Ceramic Tumbling Media 4 Pounds, Polish Up to 25 lbs. of Rocks, 4-Step Polish Refill Media Kit, Compatible with All Rock Tumblers, Essential Polishing Kit for Adults

-14%

$28 .48 $32.98

300+ sold last month

Lowest ever

Amazon

50000 Grit Aluminum Oxide Rock Tumbler Polish, Step 7 Ultimate Finish | Maximum Refinement for Rocks, Gems, Glass & Jewelry Making, Ultra-Fine Powder, 1 LB Refill, For All Major Tumblers

-10%

$36 .88 $40.98

Amazon

-13%

$12 .99 $14.95

Amazon

-10%

$44 .95 $49.95

Amazon

C5 Starter Rock Tumbler Kit - Durable Leak-Proof Rock Polisher - Complete Rock Tumbling Kit with 4 Pounds Rock Tumbler Grit Kit

-7%

$66 .53 $71.47

Amazon

-5%

$27 .53 $28.98

Lowest ever

Amazon

8000 Grit Aluminum Oxide Rock Tumbler Polish 5 LBS, Step 5 Final Refill | High Gloss Polishing Powder for Rocks, Gems, Glass & JeweFinishing, Large Refill for All Rock Tumblers

-5%

$43 .65 $45.98

Amazon

Rock Tumbler Grit Step 3, 600 Grit Silicon Carbide Fine Media Refill 5LB | Pre-Polishing For Rock Tumbling, Reduces Fine Surface Marks, Creates The Ideal Base For Step 4 Final Polish, Smoother Finish

-5%

$28 .48 $29.98

Lowest ever

Amazon

30000 Grit Aluminum Oxide Rock Tumbler Polish, Step 6 Ultra-Fine Polish | Advanced Refinement for Rocks, Gems, Glass & Jewelry Making, Ultra-Fine Powder, 1 LB Refill, For All Major Tumblers

-10%

$32 .38 $35.98

Lowest ever

Amazon

Professional Rock Tumbler Kit,3-Speed Motor & 7-Day Timer | Includes Rough Gemstones, 4 Polishing Grits, Jewelry Fastenings, Operating Instruction, Great Stem Science Kit

-6%

$33 .99 $35.99

Amazon

-5%

$28 .48 $29.98

100+ sold last month

Amazon

25000 Grit Rock Tumbler Polish 5 LBS– Ultra Fine Aluminum Oxide Final Stage Powder, Step 5 Polishing Grit for Lapidary, Gemstone, Rock & Glass Surface Finishing, for Rotary & Vibratory Tumblers

-5%

$56 .98 $59.98

Lowest ever

Macy’s

Mindblown Motorized Rock Tumbler Set, Ages 8+

-50%

$19 .99 $39.99

Lowest ever

Amazon

10-Pack Buna-N Drive Belts Compatible with Thumler’s A-R1 A-R2 A-R3 A-R6 A-R12 and B#401 Rock Tumblers, Nitrile Rubber Replacement Tumbler Belts

-22%

$13 .99 $17.99

Lowest ever

Walmart

Hot Bee Rock Tumbler Polisher Science Kits Set for Kids and Adults, Tumbler Grits, Rocks & Jewelry Polishing Accessories Set for Beginner

-17%

$49 .99 $59.99

Lowest ever

Amazon

(10-Pack) Rock Tumbler Replacement Drive Belt - Fits Thumler's A-R1/A-R2/A-R3/A-R6/A-R12/B#401 Tumblers - Heavy-Duty Buna Nitrile O-Ring Belt

-6%

$14 .99 $15.99

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Toy Blaster with 30 Dart Clips and 100 Foam Darts, Outdoor Shooting Games Toys for 6-12 Year Old Boys & Girls Adults, Gifts for Birthday Xmas, Blue

Amazon

Toy Blaster with 30 Dart Clips and 100 Foam Darts, Outdoor Shooting Games Toys for 6-12 Year Old Boys & Girls Adults, Gifts for Birthday Xmas, Blue

-20%

$39 .99 $49.99

400+ sold last month

18 Pcs Fall Tiered Tray Decor, Sage Green Pumpkin Signs | Wood Pumpkin Signs, Hello Fall Rustic Farmhouse Tabletop Decor, Thanksgiving Autumn Kitchen Home Table

Amazon

18 Pcs Fall Tiered Tray Decor, Sage Green Pumpkin Signs | Wood Pumpkin Signs, Hello Fall Rustic Farmhouse Tabletop Decor, Thanksgiving Autumn Kitchen Home Table

-14%

$11 .99 $13.99

Smilo 48-Count Erasable Colored Pencils with Erasers | Easy to Erase & Pre-Sharpened - 48 Vibrant Colors - Ideal for Coloring, Drawing & School - Art Supplies for Kids & Adults

Amazon

Smilo 48-Count Erasable Colored Pencils with Erasers | Easy to Erase & Pre-Sharpened - 48 Vibrant Colors - Ideal for Coloring, Drawing & School - Art Supplies for Kids & Adults

-5%

$13 .29 $13.99

L LOHAS LED 3000K Soft Night Lights Plug into Wall, [3 Pack] Auto Light Sensor Nightlight Plug in for Bedroom Bathroom Hallway

Lowest ever

Amazon

L LOHAS LED 3000K Soft Night Lights Plug into Wall, [3 Pack] Auto Light Sensor Nightlight Plug in for Bedroom Bathroom Hallway

-27%

$31 .37 $42.98

Retirement Ornament 2026,Retirement Christmas Ornament Gift for Women | Ceramic Christmas Retired Ornament 2026,Retired Gifts Keepsake Ornaments with Ribbon and Gift Box

Amazon

Retirement Ornament 2026,Retirement Christmas Ornament Gift for Women | Ceramic Christmas Retired Ornament 2026,Retired Gifts Keepsake Ornaments with Ribbon and Gift Box

-33%

$9 .95 $14.95

Artisanal Yarn Collection Multifiber Fancy Yarn with Golden Shimmering Threads for Knitting Crocheting Crafts DIY, Set of 3 Rolls (Royal Gold)

Lowest ever

Amazon

Artisanal Yarn Collection Multifiber Fancy Yarn with Golden Shimmering Threads for Knitting Crocheting Crafts DIY, Set of 3 Rolls (Royal Gold)

-5%

$9 .49 $9.99