On Mar 3, 10:32*am, Smitty Two wrote:
In article ,
*Vic Smith wrote:

Another thing about tapes besides end tab run out is the tab can
easily get you off by 1/8" if the rivets loosen up.

I don't know what you mean by "end tab run out" but the rivets are
supposed to be loose, and allow travel equal to the thickness of the tab.

Yes, but the holes in the ruler get elongated by repeated snap
closings.