The Warthog Sharpeners V-Sharp A4 Black is a versatile diamond knife sharpener designed for home use, as well as for professionals in the culinary, fishing, and hunting industries. Its patented V-Sharp system allows for simultaneous sharpening of both sides of a blade at the same precise angle, resulting in a sharp and long-lasting edge. This user-friendly sharpener is capable of sharpening blades at four different angles, ranging from 15 to 30 degrees, on both smooth and serrated edges. With its ease of use and effectiveness, the Warthog Sharpeners V-Sharp A4 Black is an excellent choice for anyone seeking a reliable and efficient sharpening solution. Fast shipping ensures that you can get started with your sharpening needs as soon as possible.Key Benefits and Features: Patented V-Sharp system: sharpens both sides of a blade at the same time Sharpening angles: 15 to 30 degrees Blade types: smooth and serrated edges Number of sharpening angles: 4