SparkFun PCB Ruler - 12-Inch

One ruler to rule them all. This is a basic 12-inch ruler, but made from a PCB. We have included a lot of useful information on each side of the ruler that you might use daily, including Wire Gauge holes, transistor diagrams, common fractions, Roman numerals, and metric-to-imperial conversions. Most importantly, the ruler provides a straight edge with centimeter markings on one side and inch markings on the other.

You'll also find a small protractor in the middle for all your angle measurement needs. While we figure you have a fairly good idea of how to use a ruler, we do have a tutorial that explains everything you'll see!