We-gaugestools, produced well 28 pcs Trapezoidal thread gauges for one client. the products list as below:

TR25 X 5 LEFT HAND GO ring gage
TR25 X 5 LEFT HAND NO GO  ring gage
TR25 X 5 RIGHT HAND NO GO   ring gage
TR30 X 6 LEFT HAND GO   ring gage
TR30 X 6 LEFT HAND NO GO   ring gage
TR30 X 6 RIGHT HAND GO   ring gage
TR30 X 6 RIGHT HAND NOGO   ring gage
TR35 X 6 LEFT HAND GO   ring gage
TR35 X 6 LEFT HAND NOGO    ring gage
TR35 X 6 RIGHT HAND NO GO   ring gage
TR40 X 7 LEFT HAND GO    ring gage
TR40 X 7 LEFT HAND NOGO   ring gage
TR40 X 7 RIGHT HAND NO GO   ring gage
TR50 X 8 LEFT HAND GO    ring gage
TR50 X 8 LEFT HAND NO GO  ring gage
TR50 X 8 RIGHT HAND NO GO   ring gage
TR60 X 9 LEFT HAND GO    ring gage
TR60 X 9 LEFT HAND NOGO   ring gage
TR 60 X 9 RIGHT HAND GO    ring gage
TR 60 X 9 RIGHT HAND NOGO   ring gage
TR 70 X 10 LEFT HAND GO    ring gage
TR 70 X 10 LEFT HAND NOGO   ring gage
TR 70 X 10 RIGHT HAND GO    ring gage
TR 70 X 10 RIGHT HAND NOGO   ring gage
TR 80 X 10 LEFT HAND GO   ring gage
TR 80 X 10 LEFT HAND NOGO   ring gage
TR 80 X 10 RIGH HAND GO   ring gage
TR 80 X 10 RIGH HAND NOGO   ring gage