In this article, Millired will introduce the meaning of size in machining.
    Size:A numerical value representing a linear dimension value in a specific unit. Linear dimension values include diameter, radius, width, depth, height, and center distance.
    Nominal size:It is a benchmark used to determine the limit size and deviation in the dimensional accuracy design, and is not the size required by the actual processing.
    Actual size:Refers to the size obtained by measurement. Due to measurement errors, the actual size is not the true value.

    Limit size:The two limit values that allow size variation are called limit sizes, with the larger upper limit size and the smaller one called the lower limit size.

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