With the one cut function, these Rothenberger ROCUT 42 Plastic Pipe Cutters let you cut smaller pipe diameters up to 80% faster. And if the pipe diameter is too large (or the gauge is too thick) for one cut, they automatically switch into ratchet mode. How clever is that?
And if that's not enough, the PTFE coated blade means cutting requires 20% less effort as well. It's a win win on speed and effort.