A sizing mandrel is to be used for calibration, which has {TAIL ~ a diameter} of {HEAD ~ 2 mm} in the embodiment shown 
A sizing mandrel is to be used for calibration , which has { TAIL ~ a diameter } of { HEAD ~ 2 mm } in the embodiment shown
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH