Which tool is utilized for cutting threads on bolts and rods?

The tool utilized for cutting threads on bolts and rods is a die, which is specifically designed for this purpose. A die is a specialized tool that shapes the external threads on cylindrical objects, such as bolts and rods, by cutting the material as it is turned. This process is essential for creating the precise and consistent threads that allow for proper fastening and connection with nuts or other components.

A die is typically cylindrical in shape with a pre-defined thread profile, and it allows users to create new threads or repair damaged threads on existing bolts or rods. The design and construction of a die ensure that it can effectively cut through the material to form the required threads without compromising the integrity of the bolt or rod.

In contrast, other tools mentioned, such as a thread cutter, may not be specifically designed for cutting threads on cylindrical objects, while a bolt tap is used to create internal threads in a hole rather than cutting external threads. A file, on the other hand, is primarily used for smoothing and shaping surfaces rather than for creating threads. Therefore, the die is the most appropriate tool for the task of cutting threads on bolts and rods.