Redi Edge Retac201 Tactical Knife Sharpener Set, Black Produced from military-grade aluminum for extreme durability, long life and lightweight Factory pre-set to sharpen tactical knife blades at a 30, 40 and 60 degrees inclusive angle to maintain a 15, 20 and 30 degree double cutting edge Redi-Edge Caramelized coating will protect your sharpener Convenient honing surface and a v-groove for sharpening fish hooks and needle points located on the bottom Sharpening, honing, and polishing all in one