3-17PCS 3000 Grit Diamond Stone Kitchen Knife Sharpening System Tool Whetstone Household Profession Knife Sharpener Apex Gadgets 3-17PCS 3000 Grit Diamond Stone Kitchen Knife Sharpening System Tool Whetstone Household Profession Knife Sharpener Apex Gadgets. Sale price : $9.02 Category : Home & Garden