Description sharpener has the flexibility to meet individual sharpening needs with interchangeable grinding discs and magnetic angle support, 15° angle, solid blade, and 20° angle blade. The sharpening system combines diamond and ceramic discs to sharpen most hardnesses, including kitchen knives, hard or soft steel, stainless and rust resistant steel, and outdoor knives, with diamond being the most durable and effective abrasive. 15 18 20 and 22 degrees sharpening angle: Keep your knives in the exact position of 15° 18° 20° or 22° with powerful magnets and you will always have a consistent angle across the entire blade, regardless of the tool size.