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Amazon.co.jp: Gaoominy 10pcs Accessories 20mm Diamond Cutting Disc, Metal Grinding Whetstone Disc Mini Circular Saw Drill Rotary Tool : DIY, Tools & Garden
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Amazon.co.jp: Donut (Pi-Disc) Mini 0.8 inches (20 mm), Sold as 1 Natural Stone, Power Stone, Rose Quartz : Home & Kitchen
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