The Grinding Doc helps a shop understand the source of the spiral marks showing up on a part, then offers a potential solution in the 99th episode of CTE's Grinding Doc video series.

About Jeffrey Badger, Ph.D., and the Grinding Doc Video Series: Thanks to his work as an independent grinding consultant and the author of the "Ask the Grinding Doc" column in 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.