What is a thread chaser specifically used for?

A thread chaser is specifically designed for repairing damaged threads. This tool features a shape that allows it to fit into existing thread grooves, enabling it to realign and restore the integrity of the threads without creating new ones or altering the basic thread profile. It is particularly useful when threads become stripped or damaged through wear or improper usage.

In contrast, tools used for creating new threads, such as taps or dies, have different designs intended to cut new threads into a material rather than repair existing ones. Measuring thread diameter typically requires calipers or micrometers rather than a thread chaser, which focuses on thread restoration rather than measurement. Additionally, removing rust from threads is a task suited for brushes or chemical treatments rather than a thread chaser, which is not equipped for cleaning purposes. Thus, the role of a thread chaser is uniquely aligned with the restoration of damaged threads.