Here's a short Video of the Latest and Greatest in Cutting Tool Technology.......These parts are D-2 Toolsteel and are heat treated to 60 Rc......It used to take us about 3 hours to finish Grind the Octogon and transition Radaii between the flats
With the "New" Tools we are able to make the same part in about 2 1/2 minutes........Remember, This material is 60 Rc
Ken
