Zwilling Twin Stone Pro Medium and Rough Knife Sharpening Stone Japanese Double-Sided Whetstone, Whetstones, [Official Product] 32505-100

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Products sold and shipped by Amazon.co.jp are genuine Japanese products that meet Japanese inspection standards. Product size: (length x width x height) 200 x 85 x 40 mm Rough whetstone: 250 grit = corrects the blade angle to a sharper angle. Medium grit: 1000 grit = Sharpens the edge of the blade for long-lasting sharpness. This is the only tool required for regular maintenance. Not dishwasher safe