The HEY machine tools Tooling Book No 3 Automatic Facing Centering Manual is a comprehensive guide for machinists looking to improve their skills in automatic facing centering. This manual provides detailed instructions and diagrams to help machinists learn and master the techniques involved in this specific area of metalworking. It is a valuable resource for professionals in the CNC, metalworking, and manufacturing industries seeking to enhance their knowledge and proficiency in automatic facing centering.