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MMC May Be Applied to Datum References in a Profile Tolerance Callout - But Not to the Profile Tolerance (#204)

(In accordance with Y14.5M-1994 standard)

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The Y14.5 Standard tells us that we cannot apply the MMC modifier to a profile tolerance because it is a surface control. We can, however, apply MMC or LMC to the datum references of a profile tolerance where the datum features are features of size. Here the secondary and tertiary datum features are features of size. Applying MMC to these …

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Back to Tips Tip added Jan 2007