CNC machining is a subtractive machining process that makes use of computers to regulate the motion of the tool employed. While computer numerical control can be used for a variety of manufacturing processes, CNC is a specific subtractive process which is carried out when a tool is used to remove material from a blank or another unfinished part. Computers are able to adjust parameters like the tool's travel speed, revolutions per hour, working speed, position and many more variables. https://diesandinc.com/