Measured with a micrometer.
Marked with chalk.
Cut with an axe.
Chuckle, not a new saying either.
Spent a career in the military. Back in my Nam days ran into a fellow who'd been active duty back into WW2. I forget what we were discussing but I quoted that saying in response to whatever we were talking about and he just laughed and said that saying was old when he was a young boot.