[theodoregray]

See my long comment in this thread: I categorically reject the notion that there isn't any order to my arrangement of tools. It's actually quite detailed in how it follows the chemical structure, because your pet peeve is also my pet peeve. I wrote a whole book about the actual periodic table ("The Elements" by me), so it's a subject dear to my heart. Please look more closely.

(Also, I would name gauge blocks over granite flats as fundamental to precision, but in any case, all measuring tools are in the same row because they are related, just as are the lanthanides and actinides.) They are at the bottom because that's where they fit most naturally. My logic they should be the noble gasses, because they don't change anything. But there were too many I wanted to include. It was anodizing having to move them to a larger space.