Total positional tolerance at material condition (Hole) Suppose the Ø 1.005 / 1.010 hole is inspected and there are six parts with different ID dimensions. Their actual sizes checked with run out methods give that their actual axis is to be .006” over and up from the true position even though they have different actual ID’s. We want to know which part is within true position tolerance at MMC. Parts to be acceptable require some calculation when is used the run out method. In GD&T, maximum material condition (MMC) refers to a hole that contains the greatest amount of material. To understand and memorize simply and logically the concept, I suppose that you have a part designed as a square with one hole in the center, Ø 1.005 / 1.010 . You have produced just 5 parts and measured their holes. The hole of part #1 is on the low side of its tolerance Ø 1.005" and the hole of part #5 is on high side of its tolerance Ø 1.010". Here is the question: W