Can someone comment on the proper use of centerlines in drawings? When dimensioning to the centerline of a hole for example, is it a proper drawing practice to extend that centerline leg all the way to the outside of the part (not just to the outside of the feature) and and place the dimension's extension line at that point? See the attached image for an example of what I'm talking about.
At this new job I started at recently, I'm taking ownership of parts which need additional design and drawing work done on them before they can be released for production. Often these parts will have completed prints from the previous revision I work from. I'm seeing a lot of the above practice and I find it extemely iritating for some reason. I feel compelled to change the centerlines back to how they might look in their default condition and move the dimension extension line with it.
ASME Y14.5 1994 seems to show figures done in both ways.
Thanks for your comments.
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