As someone in the industrial and scientific field, I have high standards for measurement tools and the INSIZE 1311 4 Caliper meets them all. The graduation of 0.001 makes it easy to obtain accurate readings without the need for guesswork. The build and durability of the caliper make it an essential tool for my everyday tasks. However its size is a challenge when working with smaller parts. Overall, I'm impressed and satisfied with the product. .