istar standard sharpener;

The Istor Standard Sharpener is an all-purpose sharpener ideal for sharpening multi-tools, pruning shears, horticultural knives, serrated knives, kitchen knives, scissors, and other all-purpose tools. It features a concave composite steel blade with two precision sharpening edges bonded into an aluminum handle. Very little pressure is required to use the Istor Standard Sharpene, making it gentle on the blade and easy to use. It's a must-have for both hobbyists and professionals. To use the Istor Standard Sharpener, simply pull along both sides of the cutting edge of the blade several times lightly. Work only with one side of the sharpener, holding it at an angle of 30 to 50 degrees from the blade of the knife. When sharpening scissors, sharpen only the ground, angled side.