A whetstone is the best tool for Japanese style knife sharpening. The whetstone does not damage or scratch the knife steel and allows for the highest quality result when sharpening. This double-sided whetstone with 220/1000 grit is suitable for coarse and basic knife sharpening. The slide of the Basic series is especially suitable for home users and requires soaking in water for about 5-10 minutes before use. Dimensions: 185*65*30mm. Japanese kitchen knives generally have a sharpening angle of 15 degrees, European knives have a sharpening angle of 20 degrees. Before sharpening, read the sharpening instructions provided by the knife manufacturer. There is no need to clean or dry the stone during sharpening. If necessary, additional water can be sprinkled on the stone. After use, clean the whetstone under running water and dry it.