Dianova Lapstone Diamond Sharpener Fine 5 3/8″ overall. 3 1/4″ 30 micron (fine) honing area. General purpose use. Exclusive curly-grained birch wood handle from Lapland. Brown leather belt sheath. Honing area is coated with millions of highest quality diamonds. Can be used for honing of knives, scissors, shearing knives, garden tools, chisels, axes, fishhooks, broad heads, carbide tools, stone, glass, and ceramic.