Pitch Ruler (info.b8y.pitchruler02) on Google Play
To Everyone to make somethingHave you had a thought that you want to know the Pitch of Space?Like Pitch of the screw, Legs of the IC, or All things are lined up at regular intervals.please use it also, wants to put something at regular intervals, or when you want to write a marking.It is the software to help you "when something".