![]() If 2(a) is used to manufacture the part, a hole diameter of 0.502 is acceptable. A tolerance on a radius might be looser than intended, while one on a diameter might be tighter than intended. What is the tolerance for radius?Ī tolerance on a radius will be doubled when measured as a diameter. If held to these tolerances, cutting tools, material stock, and gages are available throughout the world. The ISO System of Limits and Fits is a coordinated system of hole and shaft tolerances for engineering and manufacturing used for cutting tools, material stock, gages, etc. ![]() ISO 2768 Part 2: Geometrical Tolerances for Features What is the standard tolerance for metric? m class is specified in ISO 2768-1 and K class is specified in ISO 2768-2, which including H, K, and L tolerance levels. An ISO 2768-mK mark means the dimension information for which the tolerances are not specified will be followed according to the m and K class.
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