Tec-Ease GD&T Tip - Counting the Profile Tolerance Twice

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Counting the Profile Tolerance Twice (#197)

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

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Here is another example to help explain why the profile tolerance is on the surface, not on the dimension. The length of this part is dimensioned two different ways – with a 90mm overall or a 2X 45. Which one will allow the part to vary more? The answer is at the bottom of the figure.

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Back to Tips Tip added Jun 2006

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We offer On-Site Courses, Public Seminars, Webinars and Computer Based Training.

Counting the Profile Tolerance Twice (#197)

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

Your Source for GD&T Training
Based on The GD&T Hierarchy

Your Source for GD&T Software
and Computer Based Training

We offer On-Site Courses,
Public Seminars,
Webinars and Computer Based Training.