The AccuSharp® Fillet Knife Sharpener is a must for every tackle box. In about 10 seconds you can make your fillet knife razor sharp. The large ergonomic handle fits either hand safely and securely. The full-length finger guard protects your fingers while using. Our sharpening blades are made from diamond-honed tungsten carbide that provide years of reliable service. AccuSharp® Fillet Knife Sharpener can be cleaned with soap and water, or in the dishwasher. Fishermen, along with craftsmen, gardeners, and anyone who uses a knife, all need the easy to use, affordable AccuSharp® Fillet Knife Sharpener.