56 Grit |
EXTRA Coarse Tumbler Grit:
Most people use a 60/90 grit silicon carbide for the first step of tumbling. However, if you have large pieces of rough or pieces that need an extra coarse grind you can begin with this 56 grit silicon carbide for rapid removal of material. Use four ounces of grit for every three pounds of barrel capacity. (If you don't have a scale, a slighly rounded tablespoon of grit weighs about one ounce.) |
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60/90 Grit |
Coarse Rock Tumbler Grit:
This is the grit used in the first step of the rock tumbling process. It is an ungraded silicion carbide powder between 60 and 90 mesh. Use four ounces of grit for every three pounds of barrel capacity. (If you don't have a scale, a slighly rounded tablespoon of grit weighs about one ounce.) |
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120/220 Grit |
Fine Rock Tumbler Grit:
Use this grit for the second step of the rock tumbling process. It is an ungraded silicon carbide between 120 and 220 mesh. Use four ounces of grit for every three pounds of barrel capacity. (If you don't have a scale, a slighly rounded tablespoon of grit weighs about one ounce.) |
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Pre-measured |
Pre-measured: 4-Step Grit Kit:
This four-step grit kit includes pre-measured packets of coarse grit, fine grit, pre-polish and polish for a three-pound rock tumbler barrel. No need to measure, just cut the bag and dump the product into the barrel. These are perfect for the following tumblers: Lortone Model 3A, Lortone Model 33B, Thumler's Model AR1, and Thumler's Model AR2. |
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Coarse Pre-measured |
4 Pre-measured Coarse Grit:
Lots of people inspect their rocks at the end of the coarse grit cycle and rerun those that are not superbly shaped. We offer pre-measured packets of coarse grit for a three-pound rotary tumbler. You get four packets of coarse grit that are sized for the following tumblers: Lortone Model 3A, Lortone Model 33B, Thumler's Model AR1, and Thumler's Model AR2. |
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