My point was 1/8, 1/16, 1/32, 1/64 and 1/128" gets on my nerves. These guys
https://www.amazon.com/Etched-Metal-Ruler-Decimal-Divisions/dp/B0002JEZ50 Decimal Divisions. Definitely like 0.250" then we have numbered, letter and fractional drills.
let's not forget over/under reamers. e.g. 0.251" and 0.249"
I like feet and inches because they are close to body parts. How long of an extension cord do I need? Pace it off. The tip of the thumb to the thumb joint is about an inch.