Redi Edge Reomini 30 Mini Multi Tool Sharpener, Black Produced from military-grade aluminum for extreme durability, long life and lightweight Duromite sharpening elements are harder than any knife blade Convenient honing surface and a v-groove for sharpening fish hooks and needle points located on the bottom Factory pre-set to sharpen most knife blades at a 30 degree inclusive angle to maintain a15 degree double cutting edge Two sharpeners in one: Straight and serrated