The Nano Ruler is the perfect tool for anyone constantly making small measurements. With a length of only 2 inches, the Nano Ruler is portable and is a perfect addition to any key ring.
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I know this may seem silly, but rather than just putting your name on one side and an SI ruler on the other, how about decreasing the size of your logo or writing around the hole on the top and giving us metric too.
I really like the ruler. I have it in my KeySmart with my keys and all the other tools I have bought. I am always looking for a ruler.
It is a neat tool.
The retraction mechanism works fine, but this unit is worse than garbage. The plastic housing broke free from the surrounding chrome housing within 5 weeks of fairly light use. Lost an access card from work that I now have to explain.
This is a nice item for your keychain. It is well made and very useful.