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 Home » Rock Tumbling Supplies » Rock Tumbler Grit

Rock Tumbler Grit


Individual Grit
Grit Kits
Bulk Grit

Rock tumbling grit
"Tumbler grit" is a silicon carbide powder that is much harder than the types of rocks that are commonly tumbled. If it is tumbled in a barrel with rock and water the abrasion caused by the grit particles rounds the sharp edges off of the rocks. We use about four tablespoons of grit in a three-pound capacity tumbler barrel..

Individual Grits

Coarse grit for rock tumblers

60/90 Grit - STEP 1

Coarse Rock Tumbler Grit
(60/90 Mesh Silicon Carbide)


This is the grit that most people use in STEP 1 of the rock tumbling process. It is an ungraded 60/90 mesh silicion carbide powder. In a rotary tumbler we use about four tablespoons of coarse grit for every three pounds of barrel capacity.

One pound units are shipped in a resealable plastic tub. Five pound units are packaged in a durable zip-lock bag and shipped in a corrugated box.

Caution: Do not dispose of used grit, polish or rock slurry down a drain.
$5.95 Per Pound
Ships in a resealable tub.

$19.95 for 5 Pounds
Ships in a ziplock bag.

medium grit for rock tumblers

150/220 Grit - STEP 2

Medium Rock Tumbler Grit
(150/220 Silicon Carbide)


Use this grit that most people use for STEP 2 of the rock tumbling process. It is an ungraded 150/220 mesh silicon carbide powder. In a rotary tumbler we use about four tablespoons of medium grit for every three pounds of barrel capacity.

One pound units are shipped in a resealable plastic tub. Five pound units are packaged in a durable zip-lock bag and shipped in a corrugated box.

Caution: Do not dispose of used grit, polish or rock slurry down a drain.
$5.95 Per Pound
Ships in a resealable tub.

$19.95 for 5 Pounds
Ships in a ziplock bag.

Rock tumbler pre-polish

500F Grit - STEP 3

Fine Rock Tumbler Grit
(500F Mesh Silicon Carbide)
Also known as pre-polish


STEP 3 of the rock tumbling process prepares your rocks for polishing. This silicon carbide pre-polish removes scratches made by coarse and medium grit. It is a 500F silicon carbide powder. In a rotary tumbler we use about four tablespoons of fine grit for every three pounds of barrel capacity.

One pound units are shipped in a resealable plastic tub. Five pound units are packaged in a durable zip-lock bag and shipped in a corrugated box.

Caution: Do not dispose of used grit, polish or rock slurry down a drain.


$9.95 Per Pound
Ships in a resealable tub.

$24.95 for 5 Pounds
Ships in a ziplock bag.

Grit Kits

Rock tumbler grit kit

Four Step Grit Kit



Save $44.80 !
Buying a large grit kit will save you $44.80 over the cost of buying five standard grit kits. Your shipping costs will also be lower. In our opinion, this is the best deal on our website!
Four-Step Rock Tumbler Grit Kit

Here are all of the grits and polish that you need to process rocks in a rotary tumbler. Includes coarse (60/90), medium (150/220) and fine (500F) silicon carbide grit and TXP aluminum oxide rock polish.

Standard Grit Kits have 1 pound of coarse, medium and fine grit plus 8 ounces of TXP polish. Packaged in resealable tubs. This is enough supplies to tumble up to four three-pound barrels of rocks.

Large Grit Kits contain 5 pounds of coarse, medium and fine grit plus 2.5 pounds of TXP polish. Packaged in ziplock bags within corrugated boxes.

Caution: Do not dispose of used grit, polish or rock slurry down a drain.
Large Grit Kit
Only $79.95 Each


Five pounds each of coarse, medium and fine grit plus 2.5 pounds of TXP polish.

Standard Grit Kit
Only $24.95 Each


One pound each of coarse, medium and fine grit plus 1/2 pound of TXP polish.
Rock tumbler single use grit kit Four-Step Rock Tumbler Grit Kit Single Use
(with two coarse packets)


Here are all of the grits and polish that you need to process ONE barrel of rocks in a small rotary tumbler. Just cut the bag open and dump it in the barrel. The perfect amount of grit for barrels of the Lortone 3A and 33B tumblers and the Thumler's A-R1 and A-R2 tumblers.

Note: We include a second packet of coarse grit because running the rocks for a second week in coarse usually produces much nicer tumbled stones!

Caution: Do not dispose of used grit, polish or rock slurry down a drain.
$9.95 Per Kit

$8.95 if you buy 3 or more. (adjust quantity in cart)
Rock tumbler single use grit kit THREE-Step Lot-O-Tumbler Grit Kit

This three-step grit kit is specifically designed for the Lot-O-Tumbler vibratory tumbler.

Includes two pounds of 180/220 grit, one pound of prepolish and one-half pound of polish. Enough for 20 to 25 batches of rock.

Caution: Do not dispose of used grit, polish or rock slurry down a drain.
$29.95 Per Kit


Rock Tumbler Polish
 
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  Rock Tumbling Book
Modern Rock Tumbling We highly recommend: Modern Rock Tumbling by Steve Hart. Learning is the fastest way to improve the quality of rocks that you tumble. In this book you will learn from an expert with extensive experience. You will increase your abilities, learn to save time, money and have a great reference book that you will use again and again.

  Gemstones of the World
Gemstones of the World We highly recommend: Gemstones of the World (fifth edition) by Walter Schumann. One of the most popular gemstone books ever written, with over one million copies sold. It has about 100 pages of basic gemstone information and about 200 pages dedicated to photos and descriptions of over 100 gems and gem materials.

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