คุณลักษณะ

• Description
• One ruler to rule them all. This is a basic 12 inch ruler, but made from a PCB. We have included a lots of useful information on each side of the ruler that you might use on a daily basis including Wire Gauge holes, transistor diagrams, common fractions, Roman numerals, and metric to imperial conversions. Most importantly, the ruler provides you with a straight line and centimeter markings one side and inch markings on the other side.
• You'll also find a small protractor in the middle for all your angle measurement needs. While we figured you have a fairly good idea how to use a ruler we do have a tutorial to explain all the information you'll see!
• Get Started with the How to use a Ruler Guide
• Features
• 12 inch PCB ruler with markings down to 0.05" or 1/32"
• 30.48 cm PCB ruler with markings down to 0.1mm
• Electrical Equations such as Ohm's Law and Parallel Resistors
• Keyboard Alt Codes
• Color Wavelengths
• Protractor
• Metric Prefix Summary Chart
• Metric conversions
• Morse Code
• Transistor Diagrams
• Roman Numerals
• Fraction Summary
• Wire Guage Chart
• Tap and Drill Chart
• Size:12"x 1.5"