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This book was developed to introduce students and machining professionals to the basic operations and methods of computer numerical control (CNC) technology. It provides a solid foundation for future advanced design and programming study. Intended for readers with diverse backgrounds, concepts are presented using an applied, hands-on, step-by-step methodology, which is easy to understand and follow. Using generic examples not tied to a particular brand, coverage includes CNC set-up, operation, tooling, program structure, and machining processes. In addition, reviews of mathematics, blueprint reading, and metrology are included as needed. Some of the key features include: safety issues are emphasized throughout the text; useful and effective illustrations visually support the explanations and program samples; readers are shown how to understand the format and concepts of CNC programs; G-Codes, M-Codes, and the various other letter address codes are all discussed, in addition to operational codes, such as tool changing, offsets, spindles speed, coolant, and program stops; CNC machine types, toolholders, cutting tools, and workholding devices are fully covered.