Dr. Jeffrey Badger, the host of Cutting Tool Engineering's Grinding Doc Video Series, helps a shop that appears to be grinding good pistons, but complaints about cracking from the customer suggest otherwise. In his 68th episode, Badger explains what's happening and how the shop could miss potential problems despite inspection efforts.

About the Grinding Doc Video Series: Thanks to his work as an independent grinding consultant and the author of the "Ask the Grinding Doc" column i Cutting Tool Engineering magazine, Badger routinely receives questions about grinding from shops all over the world. Through the magazine column and this video series, he provides shops with the insight and guidance they seek.

For more information about the Grinding Doc, visit his website here.