PROBE OF THE MONTH OCTOBER 2017

Custom Calibration Sphere

 

This is a custom calibration sphere. It features a 15.0 mm diameter ceramic sphere and stainless steel base. What’s unusual is its relatively short 55.0 mm length, and its ¼-20 UNC thread. The base has a 12.0  mm major diameter and 7.0 minor diameter.  The entire assembly weighs 28.73 grams. A traceable laboratory calibration certificate was supplied with the sphere.


Our client is a New England-based aerospace manufacturer.  They ordered one.

 

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Q-Mark styli are available on