On the This Old House video https://www.youtube.com/watch?v=UmnYADLIREA at 4;00 , they show a cutting attachment for a drill which is used to cut off PVC drain pipe below the floor level. Is it normal practice to deliberately rough-in the drain pipe too high and then cut it off?
It seems like a good idea to rough-in the drain pipe too high since the final finished floor height can be hard to predict. However, it looks like it would take skill to use that tool precisely. Is there another tool for that purpose?