The diamond sharpening stone made of diamond. -Quick / easy and effortless sharpening. Grit: 80 / 120 / 150 / 180 / 240 / 320 / 400 / 600 / 800 / 1000 / 1200 / 1500 / 2000 / 2500 / 3000 grit. 80 grit - 180 grit : coarse.
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