Machine Processing and Tolerance Grades

Relation of machine processes to tolerance grades

Machining processes that under normal conditions will produce work within the tolerances indicated.

Tolerance Grades
Lapping and Honing
Cylindrical Grinding
Surface Grinding
Diamond Turning
Diamond Boring
Planning and Shaping

ANSI B4.1 Standard Tolerances are indicated in the diagram below:

ANSI B4.1 Standard Tolerances

  • 1 in (inch) = 25.4 mm

Related Topics

  • Miscellaneous - Miscellaneous engineering related topics like Beaufort Wind Scale, CE-marking, drawing standards and more

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