Made by the lowest bidder from the cheapest materials to do the minimum job

you'd think 700 billion a year would do the job.

Why do Anna and Elsa look like they've just seen Kristoff whip it out?

There's a "Mil Spec" for almost everything, like for example, grades of steel. That doesn't mean the Mil-Spec steel is stronger or resists rust more or anything, just that it meets a certain minimum tensile strength, elongation, hardenability, etc. I'm guessing that the Mil-Spec for tank steel is different from steel used to make toolboxes.

I am usually just amused when I see or hear that. There are many many civilian "grade" things that work way better and have more possible uses. Generally, besides the technical spec meaning, military grade just means an idiot can use it and not break it at least once. Also it has a specific purpose and is designed to do that one thing well. It's not generally intended to lend itself to secondary uses. There's also a good chance it does something completely unrelated magnificently.