2.65 mm is very small! Here's how you can visualize it:

* Think of a dime: A US dime is about 1.75 mm thick. 2.65 mm is a bit wider than a dime.

* Hair width: A human hair is about 0.05 to 0.1 mm wide. 2.65 mm is about 26 to 53 times wider than a human hair.

It's a measurement often used for small electronics, components, or precise mechanical parts.