This will prove to be the most versatile tool in your tackle or toolbox. It sharpens a variety of sport and household knives, shears, garden tools and much more. The "V" shape groove along the length of the rod puts an ultra sharp point on fishing hooks and other pointed tools. The telescoping, 100% diamond coated steel rod retracts fully into a high quality pocket size textured handle of solid brass or anodized aluminum. Diamonds sharpen or shape any material regardless of how hard it might be. Made in the U.S.A.