Buck Knives EdgeTek Ultra Steel 10in Diamond Knife Sharpener Tri-Grit. This Sharpener from Buck Knives is made with a Tri-Grit: 325 Coarse 750 Medium and 1200 Fine. The Buck Knives EdgeTek Ultra Steel 10 Sharpener offers an easy carry sharpener with a 100percent diamond coated 3-sided surface and oval contour for sharpening a wide variety of blade edges. It is lightweight and perfect for storage in a kitchen drawer or toolbox. It is designed to handle a variety of blade geometries and provides the right grit for any task. Specifications for Buck Knives EdgeTek Ultra Steel 10in Diamond Knife Sharpener: Manufacturer: Buck Knives Grit: 750 Fabric/Material: 100percent Diamond Coated Color: Black Length: 15.75 in Width: 0.5 in Overall Length: 15.88 in Blade Length: 10.38 in Blade Material: Steel Features of Buck Knives EdgeTek Ultra Steel 10in Diamond Knife Sharpener Three-sided surface Ultra lightweight Contoured Polypropylene handle Package Contents: Buck Knives EdgeTek Ultra Steel 10in Diamond Knife Sharpener Buck Knives 97082B/6253: EdgeTek Ultra Steel 10in Diamond Knife Sharpener Tri-Grit