KME Jewelstick three-sided diamond sharpening stone, JLSTK

The KME Jewelstick three-sided diamond-coated sharpening stone is, because of the curved sharpening surface perfect when sharpening knives with a so-called recurve. Think of Karambits, Kukri's or other knives with a hollow blade shape. In this case the blade is not convex but hollow. This is difficult to sharpen on a straight sharpening stone. Knives or axes with a convex or straight blade are, however, also easy to sharpen with these three-sided sharpening stone.