In this Question Line video, Jason discusses the Profile Unequal Zone, in answer to the following submitted question: 

I have come across a modifier that I have never seen before…

 

The submitted question had a screenshot of a feature control frame like the one highlighted in the drawing below: 

 

In this video, Jason discusses the ISO Unequal Zone (UZ) modifier, which is similar to the Unequally Disposed modifier of the ASME standard. He walks through the feature control frame highlighted in the drawing above to explain what the tolerance zone would look like – defining the total tolerance zone size and the amount and direction of shift in tolerance. 



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