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Posted
6 minutes ago, Lucky Phil said:

... set of thread gauges...

What I use, too. I bought the vernier calipers because I wanted one, and the thread gauges came with the tap and die set, one of the best buys amongst my tools. I've had so much use out of it.

 

Anyway, @Lucky Phil how does the 3-wire and micrometer method work?

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Posted
29 minutes ago, audiomick said:

What I use, too. I bought the vernier calipers because I wanted one, and the thread gauges came with the tap and die set, one of the best buys amongst my tools. I've had so much use out of it.

 

Anyway, @Lucky Phil how does the 3-wire and micrometer method work?

3 small wires that sit in the thread pitch dia, so in the thread valleys so to speak. Two on one side and one on the other and then use a std mike to measure the bolt dia. Useful when single point cutting on a lathe. This is better than my explanation.

 

 

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Posted

I bought these primarily for the nuts. I have pans of standard / metric nuts and I like to go the easy and most accurate way of doing this . I was using bolts to measure thread pitch , etc. of ea. nut

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