The vitrified CBN wheel still reduced cost because cycle time was reduced from 1 minute to just under 30 seconds per part.  Wheel changes (which take 8 hours each) were reduced to one per year compared to the 24 changes per year for the conventional wheel.

Note: The percent of abrasive diameter per rotation of the work was only 3 percent.  This is a calculation on all grinding applications to allow the user to understand if the feed becomes too large for the  specific abrasive size crystal being used.  Thus, if the percentage is too high, particle pull out could occur.