What should be avoided to prevent damaging pipe threads when using a hand threader?

Using a blunt tool when threading pipes can lead to damaged threads for several reasons. A blunt tool does not cut effectively, which means it can create rough or jagged edges on the threads rather than clean, precise ones. This imperfection can lead to issues such as a poor fit between connected pipes and fittings or even cracking or warping of the pipe material itself during the threading process. Sharp, well-maintained tools, on the other hand, produce smooth, even threads, ensuring proper sealing and fit when assembling pipe connections.

While factors like over-tightening fittings and the need for lubrication or reaming can also contribute to issues in pipe threading, the use of a blunt tool directly affects the quality of the thread being formed. Hence, keeping your threading tools sharp is crucial for maintaining the integrity of pipe threads.