The Redi-Edge Pro Series Knife Sharpener is designed for the sharpening enthusiast. The convenient Inchstick Inch design gives you a sturdy grip while you use the Duromite cutters to put the perfect edge on your knife every time. The grit surface coating on the body of the stick provides a honing and polishing surface for finishing the edge of your knives. Our Ceramitized coating will protect your sharpener no matter where your adventures take you. You can even sharpen your hooks and needles on the convenient V-groove located on the bottom of the Pro Series Sharpener. The Redi-Edge Pro Series' Duromite cutter blades are factory-set at a 40 degree inclusive angle, maintaining a consistent 20 degree double edge on your knives.