Redi-Edge Tactical Pro Knife Sharpener RETAC201-60, Black Produced from military-grade aluminum for extreme durability, long life and lightweight Duromite sharpening elements are harder than any knife blade Factory pre-set to sharpen most knife blades at a 30 degree inclusive angle to maintain a 15 degree double cutting edge Convenient honing surface and a V-groove for sharpening fish hooks and needle points located on the bottom Redi-Edge Ceramitized coating will protect your sharpener