Reamers are specifically used to drill holes that are:

Reamers are specifically designed to create holes that are precise in diameter and possess a smooth finish on the interior surface. This tool is typically used after a hole has been initially drilled, as its function is to refine the hole size and improve its surface quality. The cutting edges of a reamer are engineered to remove a small amount of material, which is essential for achieving tight tolerances and a desirable finish that matches the specifications required for precision assembly or fitting of components.

In manufacturing contexts, achieving precise dimensions is critical, especially in applications that require parts to fit together accurately, such as in machinery or structural applications. Thus, the role of reamers is vital in ensuring that the final product meets exact standards, enhancing both functionality and reliability.