Lortone 60/90 Grit Silicon Carbide Coarse Tumbling Medium - 1lb 591-056(19004)

"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..

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.

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

This product is available in larger quantities

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