I know it seems a little ridiculous to talk about how great a ruler (straight edge, line gauge, etc) is, so I'll make this brief. I currently use this six inch ruler every day of my life thus it is quite important to me. You may be wondering how that's even possible. How do I have that much stuff to measure? Even now that I think about it, I have no idea. But I know that I use it all the time. Kinda how I used to use these really awesome calipers every day at my old job. But that's another post.
So portable. So versatile (inches and mm! key!). And metric equivalents?!? Yes, please.
Just try to ignore the fact that it has the initials FAG* on it.
*It stands for Fischers Aktien-Gesellschaf, in case you were wondering, a bearing company originally founded in Germany. Yeah, get over it. How did I get it, you ask? Probably accidentally swiped it from my super-duper-jet-engine-making job. Whoops.