General Tolerance :ISO-2768

Variations on dimensions without tolerances values are according to ISO 2768 for linear and angular dimensions. ISO 2768 is used to define the general tolerance on sheet-metal and plastic parts. For sheet-metal parts ISO 2768-m and for plastic parts ISO 2768-f is used as general tolerances 

This part of ISO 2768 is intended to simplify drawing indications and it specifies general tolerances for linear and angular dimensions without individual tolerance indications in four tolerance classes.

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