Or a dull knife lol

Agreed, I’d take a square and a story stick of sorts over a tape measure

Sadly it’s more common than I’d like everywhere I’ve worked too

I’ll be honest, I’m a bit jealous of his confidence.

I don’t know if this was to point out that a file is iron and that can sharpen stuff, but I’d like to point out that files are generally made from a tool steel alloy that is formulated to be quite a bit harder than iron/standard steels after it gets properly heat treated. Files aren’t just “iron” and there’s a lot of different steels that do different things.