What do the numbers mean on the zoom lock?

Question

Philips Norelco BeardTrimmer 3100

A rechargeable, cordless beard trimmer created by Philips. The model number is QT4000/42.

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I would like to know what the numbers represent.

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ilan @ilan64383 声誉积分: 173 6 3 · Answer 1 · 2015-10-13T11:58:38-07:00

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The numbers represent the desired hair length in millimeters after trimming.

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