Multi-purpose blade sharpener with a hard diamond coating. Features a reversable sharpening file with round tapered, flat, half round & grooved surfaces. Ideal for sharpening a wide variety of tools, knives, fishhooks etc. Tapered end can be used for a variety of uses including removing corrosion from automotive electrical connectors including hard to reach trailer socket connectors. Pen-style design with knurled grip, anodised finish & a pocket clip.