Looking for measuring tool

eac67gt

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H-M Supporter Gold Member
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Nov 18, 2012
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I am looking for a tool that I can reach down into a cylinder shape that might only be 1" id and measure between two points fairly accurately. I imagine it like the id p points on calipers but that the calipers can reach down into the cylinder and measure between two points length wise. There are other ways to probably go about this and I thought about making extensions on my calipers to go about it one way.

Ed

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Something along these lines?



Those are groove mics by Mitutoyo. 146 series. I have two, the first and second on that picture.
 
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Exactly Tony! :)
I will have to look closer into this .

Thanks!
Have a great day .
Ed

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If you are doing many pieces, and checking in process, the groove mic or a small hole gauge is the easy to go. But, if you're just checking one piece, you could cast an epoxy in the part and remove for checking. This is a common practice for gunsmiths when checking/verifying a chamber.
 
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