Brand: AST-Tumbling

Tumbling Grit

Brand: AST-Tumbling

Tumbling Grit

This top-quality grit gives you top-quality results.

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29% OFF
$29.00 USD
Save: $12.00
29% OFF
$29.00 USD
Save: $12.00
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Product Description

This is a no-nonsense grit kit for polishing all kinds of rocks. The first three stages are different grades of silicon carbide, and the polish is aluminum oxide.

There are four levels of grit included in the kit (or available individually):

  1. Step 1 - 60/90 Grit Coarse (670g) - 500ml Bottle
  2. Step 2 - 220 Grit Medium (330g) - 250ml Bottle
  3. Step 3 - 600 Grit Fine (330g) - 250ml Bottle
  4. Step 4 - Micron (>14,000 Grit) Polish (180g) - 250ml Bottle

Now available in quarts (975ml containers)! These are a great value for those looking to tumble lots of rock!

We include larger bottles of coarse grit because we find that most rocks benefit from two cycles on Step 1. There's enough here to polish up to 9lbs of tumbling rough.

Here's our favourite recipe for most rocks:

Week Grit Tbsp/lb of rock Water level
1 Step 1 2 Cover top of rocks
2 Step 1 2 Cover top of rocks
3 Step 2 2 Just below top of rocks
4 Step 3 2 Just below top of rocks
5 Step 4 2 Just below top of rocks
Clean your barrel and rocks between each step of the tumbling process.

Customer Reviews

Based on 12 reviews
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K
K.
Great help with all the know how

Very helpful answering questions and getting everything needed for my kids first rock tumbling set up. Excellent variety of rough rocks as well. Highly recommended place for cool STEM stuff for kids and adults alike.

J
J.
Just starting to use

I’m just starting to use these. I ordered all 4 grit and polish stages.
I received these in good time and in great condition. They always package everything so very well. The containers are great and the product looks as it should.

C
C.M.N.

Tumbling Grit

D
D.B.
First round of tumbling went great … now to proceed with #2 #3 and polish

Just finished the first round and very happy with the way it turned out. Moving on today to grit #2

g
g.k.

Easy to order from them, They were speedy, well packaged. Thanks

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