This product exceeded my expectations when it came to sharpening my kitchen knives. As a result of my tests, I determined that it performs exceptionally well in sharpening and flattening the edges of my knives. It is a great tool for anyone who wants to keep their knives in top-notch condition. However, the packaging could be better as it arrived with a few scratches on the surface. Overall, this product is worth the investment for anyone in the Industrial and Scientific industry who need a quality sharpening stone.