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46/70 - Extra Coarse
46/70 is extra coarse. Use it when you have heavily pitted stones or agates with a crust on them.
Use one tablespoon per pound of rock and add a tablespoon per pound each week until you feel you can move on to the 60/90 stage.
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60/90 - Coarse
This is coarse grit, the most popular first grit for tumbling.
Use one tablespoon per pound of rock and replenish weekly until stones are perfect.
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150/220 Medium
150/220 is the medium stage and run after the 60/90.
Use one tablespoon per pound of rock.
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400 Fine /
Pre-polish
Grit size 400 is for the final silicone carbide stage before you move to polishes.
Use one tablespoon per pound of rock.
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80 - COARSE
You'll have more success using straight grits in your lap than a mixed grit as in tumbling. Size 80 is for the coarse stage.
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| 220 - MEDIUM
For the second stage in lapping, use size 220, our medium grit
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Size 400 is the final silicone carbide stage for vibratory laps before you go to the polishes. Purchase 400 to the left.
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600 - SUPER FINE
The final silicon carbide stage is size 600, or super fine. People doing cabbing with fine materials will use this superfine grit.
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| 1200 Grit
A friend of mine who was using 600 grit on his faceting machine to make cabs tried this and was amazed at how 'fast' it was. He said he will always use 1200 before going to polish from now on.
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