#188 in both 9814 and 9823 bore/ boss cycles will display the diameter immediately following the measuring cycle. I usually save it to another user variable as it will be erased when you start another measuring cycle. It's up to you how much you want to trust that measurement. I usually see accuracy of about +/- a few tenths from what I measure. Depends on your tolerance really. I get a lot of tight tolerance bores I locate to and monitor the bore size sometimes.