Yttrium2 - 4-7-2022 at 14:30
I tried measuring the inner diameter of a bottle with a dollar store measuring tape in mm.
My measurements varied because I couldn't line the tape up perfectly centered.
Is there a caliper for this?
How does one use it?
Twospoons - 4-7-2022 at 14:39
You want a vernier caliper. They range from cheap and cheerful plastic ones for a few bucks to expensive stainless steel ones with digital readouts.
https://www.technologystudent.com/equip1/caliper1a.png