Corey Millligan takes you through the instruction needed for knife sharpening. He explains that all knives, regardless of cost, needs to be sharpened. He shows you the diamond steel sharpener. He explains the positions you can hold the sharpener and which one is best for beginners. You learn how to get and control the angel needed and how paying attention to pressure is important. Corey also teaches you how to sharpen serrated knives and different techniques for advanced sharpeners. Watching this video will teach you proper knife sharpening technique.