Manufacturing Thread Ring Gages

[Calibration Kid]

Does anyone know why a manufacturing company will manufacture a SOLID thread ACME ring, measure it, give a cert, but not re-calibrate it next year?

 

[Wayne]

What size is the gage?

Is this made in USA or made someplace elsewhere?

Was the gage made by an official gage maker or by a precision machine shop?

In answer to your question:
It is likely that the gage maker used a (soft/shop) Master Check Plug to calibrate the new ring gage. After the job was complete they recycled the master check plug into a smaller size for the next job.

If you send me more details I may be able to point you to a calibration laboratory which can assist in this for you.

 

[Michael_M]

There is also something else I have run into. Most (if not all) gage manufactures that I have access to are not certified to any gage calibration standard. Their certification states 'compliant' which means they say they are following the rules (and probably are, I hope).

I have started to send my newly purchased gages out to a certified lab for calibration when I can. I also now require a full form certification from the manufactures.

 

[Wayne]

Most (if not all) gage manufactures that I have access to are not certified to any gage calibration standard. Their certification states 'compliant' which means they say they are following the rules (and probably are, I hope).

I have started to send my newly purchased gages out to a certified lab for calibration when I can. I also now require a full form certification from the manufactures.

Michael;

There are several USA screw thread gage makers which have internal ISO 17025 Accredited Laboratories; these are the larger screw thread gage makers (contact me privately and I can assist in this). The smaller screw thread gage makers are getting on-board, but it is a slow process.

Yes; always specify the "Long Form Certification" from any screw thread gage maker to assure that you are getting the best product.