I've had dozens of gauges with rivets and have gotten used to the annoying wrong readings and other issues that I have with most other gauges. It's so easy to use and seems really accurate. I haven't had to use it on old lathes and plaster walls yet so I'm not sure how it will go. Overall I'm very happy with it so far. It's a bit fiddly, but worth it as it speeds up installation.
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