The Blademedic Knife Sharpener is the first responder for field repairs on all types of knife blades. It’s like having an entire sharpening kit right in your pocket - able to tackle regular or serrated blades, gut hooks, hunting, fishing, - just about any knife using one or all of the following elements: Tungsten Carbide, Just three or four strokes will restore your blade. Ceramic Sharpening Rods, Polish to a finished edge in three or four strokes. Serrated Knife Sharpener, Designed to get inside even the smallest serrations. Diamond Tapered Rod, For fast reconditioning and maintenance. Made in USA.