This is the first of a two-part Tech Lab Tuesday series on Counterboring, Valve Seat Counterboring to be exact. In this video, Dave Monyhan discusses the various forms counterboring tools have taken over the years, including Brazed Carbide, Indexable, and finally the Adjustable Indexable Counterbore Cutting Tool from Goodson. You'll learn how to set cutter size and much more in this episode of Tech Lab Tuesday.