This diamond hone is commonly found when searching how to sharpen a knife. Diamond coated, the sharpening surface measures 1/2" x 5" with plastic handle and rounded edges. Replacing the whetstone, these knife hones are very high quality and made in the USA. Use it to sharpen knives of any sort! This is our most popular sharpening tool, knife sharpener. The rounded edge design on this knife sharpening tool allows for easy sharpening on the hook part of the hoof knife or any similar knife.