Dimensioning, Continued
Counterbored
Counterbored holes (CBORE) are holes of different depths that share
holes
concentric centers. There is no angularity in the larger bore. Dimension
counterbored holes as two concentric diameters and a depth. Where the
thickness of the remaining material has significance, dimension the thickness
rather than the depth of the hole.
Figure 3-32 illustrates counterbored dimensioning.
Figure 3-32.—Counterbore dimensions.
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