Shapton K0704 Engi Fine Whetstone I purchased whetstones ranging from 1000 grit to the equivalent of 8000 grit, but I only tried them out and haven't used them much. My sharpening skills are poor, and using anything finer than the equivalent of 1500 grit makes the blade less sharp... 3000 These are high-quality ceramic whetstones, ideal for maintaining a sharp edge. - Brand: Shapton - Product Name: Ceramic Whetstone - Model: K0704 - Finish: 5000 grit equivalent Engi Fine - Made in: Japan Thank you for looking.