FILENAMES: higher_speed_for_carbide_turning1.jpg higher_speed_for_carbide_turning2.jpg higher_speed_for_carbide_turning3.jpg DESCRIPTION: These are pictures of a experiments with cutting speed using carbide inserts. Posted by Leigh Knudson . Leigh provided the following description: ================================================================= The enclosed photos show a 1" steel shaft turned at 1500 and 3000 rpm. The good finish came from the higher speed and with the good finish came a very consistent final dimension. The photo is of the same two shafts just slightly different angles to illustrate the difference in finish. Leigh @ MarMachine