Which tool can remove burrs on hydrant threads?

A small triangular file is an effective tool for removing burrs on hydrant threads because it is specifically designed for deburring and smoothing edges. Burrs are rough edges or protrusions that can occur on metal surfaces, and if left unaddressed, they can hinder the function of the threads and make it difficult to connect hoses and fittings. The triangular shape of the file allows it to reach corners and flat surfaces around the threads, making it easier to clean them thoroughly without causing damage.

Using this tool requires careful technique; the file should be moved in a way that removes the burrs without altering the width or integrity of the threads. Proper maintenance of hydrant threads is crucial for efficient operation during emergencies, as properly functioning threads ensure that connections can be made quickly and securely under pressure.

Other tools mentioned in the choices may not be suitable for this specific task. For example, a pipe wrench is designed for gripping and turning pipes and does not have a filing edge, which would not effectively smooth out burrs. An IEEE tap is intended for creating internal threads in holes and would not serve the purpose of smoothing the external threads of a hydrant. A small butane torch is used for heating and may even cause more damage to the hydrant threads rather