Special Gaging Container Fit Measurement for the Food and Plastics Industries PI-GAGES FOR I.D. AND O.D. Starrett PI-Gages protect product quality by maintaining critical diameter tolerances of plastic lids and containers where shrinkage, temperature and mold affect parts manufacturing. The diameter of these parts is critical to the sealing integrity between lids and containers. We have developed a wide variety of hand held and fixture gages for many related applications. Starrett PI-Gages measure most diameters accurately to within ±.001. Designed to measure any flexible circular part, variations of these gages have been in use for over 25 years, and have become the standard of the industry. PI-Pla te Gage for O.D. This gage ensures container quality requirements with an easy-to-use gage system. With either electronic indicators (and data collection), or dial indicators,this gage measures most product diameters to ±.001" accuracy. Each gage from the 2" to 4" range through the 10" to 12" range is set to zero with the master. Push the button on the indicator to insert a part and release the button to gage a part within ±.025" diameter range from the master size. They provide quick changes from size-to- size, ease of use, and ±.001 accuracy on most diameters will ensure process control. Fixtures for Large O.D. or I.D. Measurement Metal band I.D. fixture for 1/2-gallon container Master in position to set indicator to zero Top of 1/2-gallon container in measuring position 254 S pecial G aging