4" Green Grinding Stone 80 Grit W/ 5/8-11 Thread. Green grinding stones are made from green silicon carbide, which is more abrasive and 30% more durable than black grinding stones. They are used for grinding of granite, marble and other types of stones. T
4" Green Grinding Stone 80 Grit W/ 5/8-11 Thread. Green grinding stones are made from green silicon carbide, which is more abrasive and 30% more durable than black grinding stones. They are used for grinding of granite, marb...
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