Gorton 8-D, 81/2-D & 9J "Super-speed" Vertical Milling Machines. Operation & Maintenance Manual with Parts as Sectional Drawings. Includes lubrication, adjustments, instructions on how to set up work, data on cutters for die and mold work, grinding single-flute Gorton cutters and cutter speed charts, etc. Includes a copy of the maker's sales and technical specification catalogue.