WGC Air Probe w/ Duraplate Master Setting Ring Gage 
 CLASS XX  
pn# 63.8525 MM 10L

   This is awesome metric Ring gage set.   This is HARD to find.  I do not know much about these or what they go to.  These come in original boxes, but are slightly used.  Got them at factory overstock sale

FREE SHIP

**  I have many more of these gages from WGC.  I will give you a deal if you want multiples.  Please see my other listings.  My partner is listing the Standard and I am listing the Metric.