- Joined
- Feb 1, 2015
- Messages
- 9,517
When measuring the diameter of small holes, my favorite tool is a pin gage. I have sets up to 1/2" but yesterday, I needed to measure a .903" hole. Ideally, I would have a full set of pins to 1" but at somewhere near a $700 even for an import set, that's an expensive bunch of metrology. I used a .500" pin and a .403" pin side by side to make the measurement. It worked great. A .500" + a.402" was loose, a 500" + a .404" was a no-go, and a .500" + a .403" was just snug.
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