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paulgalindo
the grinder is beyond you mostly used for fabrication in the slab shops, stay dry 50 grit to 3000 diamond pads 200 dollars in America, you have more control with a variable speed polisher 4" the hardest ones to do perfect are absolute black granite, other granite shades are fine, practise with limestone it's easier and you can get away with 50 to 800 any questions let me know