What does 'mm/tooth' measure in machining?

The measurement of 'mm/tooth' in machining represents the feed rate of the cutting tool. Specifically, it indicates the distance that the tool moves linearly for each cutting edge engaged with the workpiece. This measurement is critical because it helps determine how much material is removed in one complete rotation of the cutting tool, thus impacting the overall efficiency and effectiveness of the machining process.

By understanding the feed rate in terms of mm/tooth, machinists can adjust the feed rate to optimize cutting conditions, which can lead to improved surface finish and increased tool life. Increasing the feed rate can enhance productivity, while a slower feed may be necessary for finishing operations where a finer surface finish is required.