A machinist pocket protector

when you absolutely, positively, have to have your calipers handy.

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OCC = Open Caliper Carry

Badass machinists only…

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@Webdevel this might be a good leather working project class!

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careful, we might have to get a board ruling on that. :rofl:

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Hey now, I use my caliper for a valid non-machinist use!

It’s very handy for measuring the physical size of SMT components and radial capacitors to ensure what is being purchased is the proper physical size for the circuit. :slight_smile:

Leave it to @Team_Vector to have a good non-machinist use!

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I have quite a few sets of calipers, but my favorite set has caused me to suspect its accuracy. This is the set I use for reloading,and a mistake can be… unhealthy. So I guess I need to buy another set today. I also need a ball micrometer, so had to make a trip anyway.

Do we have any reference tools, that can verify the accuracy of a set of calipers or a micrometer?

yes we have quite a number of pin guages and blocks in the white cabinet.

The micrometer (if a good one) should come with a ‘standard’. The space also has gauge blocks which make good standards.

On a related note, calipers are typically good for +/- 0.002" at best. For an order of magnitude better accuracy you need micrometers.

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yes, but would you trust a harbor feight standard? :thinking:
Oh wait! You said a GOOD one. never mind.

As long as some @#$&*(j dude doesn’t want to build one from a billet of plastic on the HAAS!:sunglasses::grinning:

Or brass! What’s the thermal expansion on that one… hmm… Off to Google…

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Bring it, we can check it. Have the diameters and we’ll specifically check those.

Potters use calipers to make sure the lid you are throwing for a pot is the same size as the opening is
and we use them in jewelry, to figure out how log a cuff bracelet should be