Buck Knives Soft Arkansas Stone Knife Sharpener Coarse 500-600 Grit. Whether you own a pocket knife a hunting knife or a kitchen knife a sharpening stone is essential for preventing your blade from becoming dull. Most of our sharpening stones are lightweight and portable so you can use them at home or take them with you wherever you go. Specifications for Buck Knives Soft Arkansas Stone Knife Sharpener: Manufacturer: Buck Knives Grit: 600 500 Fabric/Material: Quartz Crystal Novaculite stone Sheath Material: Nylon Package Contents: Buck Knives Soft Arkansas Stone Knife Sharpener Buck Knives 97017B/10094: Soft Arkansas Stone Knife Sharpener Coarse 500-600 Grit