My only question/concern is do these two barrels rub against each other or are there spacers so that they spin independently and without friction.

There is no spacer. They do not rub against each other because they rotate at the same speed.

Can I buy just the machine. I have 2 spare barrels

just buy the whole machine. The extra barrels may be an asset.

How much course grit do i use for 9 lbs of rocks?

In general you will use 2-3 tablespoons of 60/80 grit in each barrel ( 2 barrels for this model A-R2 ). That is the first stage for ~2 weeks. So for 9 lbs ( 3 barrels worth ) you will use 6-9 tablespoons. You'll want to do some research ( youtube is helpful ) on how to load the barrels as going just by weight won't be completely accurate.

Thumlers Tumbler Model A R2 Kit Rock Tumbler

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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2201.50 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

✨ Polish Your Passion with Every Turn! ✨

COMPACT SIZE - Designed to fit seamlessly into your workspace without taking up too much room.
VERSATILE USE - Perfect for hobbyists and professionals alike—create stunning polished stones!
DURABLE CONSTRUCTION - Built to last with high-quality materials for consistent results.
TRANSFORM YOUR ROCKS - Unleash the hidden beauty of your stones with our powerful tumbler!
USER FRIENDLY DESIGN - Includes an easy-to-follow guide for rock polishing enthusiasts.

The Thumler's Tumbler Model A-R2 Kit is a robust rock tumbler featuring two rubber tumbling barrels, each with a 6 lbs capacity. With a barrel interior measuring 4.25" in diameter and 4" deep, this kit comes complete with an instructional booklet to guide you through the rock polishing process, making it ideal for both beginners and seasoned enthusiasts.

Specifications

ASIN	B003KSSHD6
Best Sellers Rank	#719,943 in Toys & Games ( See Top 100 in Toys & Games ) #140 in Kids' Rock Tumblers
Customer Reviews	4.1 4.1 out of 5 stars (86)
Item Weight	7 pounds
Manufacturer	Thumler's Tumblers
Manufacturer recommended age	14 years and up
Product Dimensions	16 x 12.5 x 5.1 inches

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TrustScore 4.5 | 7,300+ reviews

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2201.50 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Thumler's Tumbler Model A-R2 Kit Rock Tumbler

Description

Specifications

Common Questions