A pocket sized tool with slot scales for 1:24,000, 1:25,000, and 1:50,000 scale maps. The 1:24,000 and 1:25,000 scales allow you to divide a 1km map grid with 10m precision. The 1:50,000 scale allows you to divide a 1km map grid with 20m precision. The tool also has a compass rose along its outside edge marked in degrees. This makes plotting or measuring a bearing a snap. The small size of this tool will allow you to keep it handy in your pocket.