149 a:4:{s:8:"template";a:1:{s:27:"Work Instruction-print.html";b:1;}s:9:"timestamp";i:1367596168;s:7:"expires";i:1367599768;s:13:"cache_serials";a:0:{}}WI 3004 - Reading PI Tape


Created Modified Rev. Changed by Change
08/09/05 08/10/05 2 Mathias Added Locations



Wrap the pi tape around the piece to be measured, with the numbers facing outward. Line up the two sets of numbers. On the 0 – 25 scale find where the 0 lines up with the other scale. That is the diameter to the nearest inch and hundredth of an inch. From the 0 – 25 and the inch scale, find the two lines that line up best and the reading on the 0 – 25 scale is the thousandths of an inch.