I'm not saying your way is not a good idea, I would love it if my company could afford the type of measuring equipment you are talking about. I've asked, they said no

To avoid any misunderstandings I'm talking about pitch diameter measurement and NOT pitch measurement.
I'm walking on a tightrope here but the type of PITCH DIAMETER MEASUREMENT thread inserts I mean aren't expensive.
I'll give an example:
a pair of thread pitch diameter inserts that can measure all external threads with a flank angle of between 50 and 80 degrees and all pitches from 1 - 2 mm / 24 - 13 TPI cost approximately USD 100 and similar internal thread pitch diameter inserts costs approximately USD 105. Internal measurement inserts can measure from 1/4 inch.
Thread pitch diameter measurement accuracy? - better than 0.0008 inches. The pitch diameter tolerance on a standard 1/4-20 UNC external thread is almost 0.0037 inches and on an internal thread 0.0049 inches. The larger the diameter and the courser the pitch, the greater the pitch diameter tolerance.
With 4 standard pairs of either external or internal thread measurement inserts all threads with a flank angle between 50 and 80 degrees with pitches from 05 - 8 mm / 48 - 3 TPI can be measured.
I'm already misusing Cove etiquette by writing what I already have and that is why I suggested contacting me by PM for more information. Either that or look at the information on my personal details by clicking on my name. I can easilly send reading material.
If anyone doesn't believe what I write, who'd have believed computers and mobile phones just a few years ago?
