The can micrometer is a specialized measuring tool used to measure the dimensions of can seams, especially those found on metal containers or cans. The can seam refers to the area where the lid or top of the can is joined or sealed to the body of the can.

Can micrometers are commonly used in the food and beverage industry, as well as in can manufacturing and quality control processes. They ensure that can seams meet specific standards and specifications, such as those set by regulatory bodies or industry guidelines, to guarantee the integrity and safety of canned products.