If you have ever tried to size a dual row header, you'll know how difficult it can be.
Using a razor saw and your home-made miter box, makes this job a breeze.
Side cutters don’t do the job.
https://forum.arduino.cc/index.php?topic=445951.msg3438887#msg3438887
http://www.leevalley.com/en/wood/page.aspx?p=55600&cat=1,42884
