How much should you tighten the knob when cutting pipe with a tube cutter to avoid distortion?

When using a tube cutter to cut pipe, it is crucial to apply the right amount of pressure to ensure a clean cut without distorting the pipe. The correct practice is to tighten the knob in small increments, ideally between 1/8 and 1/4 of a turn at a time. This gradual tightening allows the cutter wheel to effectively score the pipe without exerting excessive pressure that could lead to deformation or uneven cuts.

By keeping the adjustment minimal, you enable the tool to perform optimally, ensuring that the cutting process remains controlled and precise. As the cutter progresses around the pipe, this careful approach also helps prevent binding or jamming, which can occur with tighter adjustments. A consistently controlled tightening technique promotes safety and enhances the quality of the final cut.