A DMT Multi-Sharp offers a variety of sharpening options for blades and edged tools for sports, shop, home or in the garden. Addresses straight, curved and serrated edges. Sharpener: 6 7/8 inch x 1 1/2 inch x 1 5/8 inch. Includes: Single sided sharpeners 4.33 inch x 0.875 inch and serrated file 4.44 inch x 0.25 inch to 0.0625 inch diameter taper. Single Sided Sharpener in coarse diamond (325 mesh,45 micron) restores a dull edge; and Single Sided and Serrated Sharpeners in Fine diamond (600 mesh, 25 micron) for a razor sharp edge. Sharpeners made in the USA; other components made in China.