Learn how to cut spur gears on a horizontal milling machine using a dividing head in this comprehensive 36-minute video tutorial. Explore the process of gear cutting for a Reed-Prentice lathe, including an overview of the dividing head and arbor, installation of the shaft and over arms, and centering the cutter. Discover how to use a gear cutting spreadsheet, make precise measurements over pins and across pins, and properly divide the gear. Follow along as the instructor demonstrates the first cut, explains the dividing head's function, and showcases techniques for cutting cast iron gears. Gain valuable insights into the entire gear cutting process, from setup to the final gear set, in this informative machining tutorial.