CNC milling terminology

Some terms used in CNC milling may imply other content in other contexts. Understanding these terms will help you better understand your CNC mechanic or designer.
Cutting tools
The cutting tool is a detachable component of a CNC grinder that performs cutting actions. The tool used for CNC milling usually has multiple cutting points. This is because during the milling process, the tool moves perpendicular to its rotation axis. There are various types of cutting tools that vary depending on the material, form, number of grooves, and position of the cutting edge. The tool selected for the milling process depends on the material to be milled.
Cutting fluid applied to CNC milling process (source: Wikipedia. com)
speed
The speed in CNC milling refers to the rotational speed of the tool. It is measured in revolutions per minute (RPM). The speed can be programmed, depending on the material to be ground. For example, you can produce aluminum at a higher speed than steel mills.
Feed
This is the distance that the workpiece or tool moves per revolution. Just like speed, you can also program the feed. The feeding also depends on the material you want to grind.
Cutting depth
Cutting depth refers to the distance the tool moves to the surface of the workpiece. The material also determines this parameter.
Cutting fluid
Because milling is usually a high-speed process, a large amount of heat is usually generated due to friction between the workpiece and the cutting tool. This makes it necessary to use a substance called cutting fluid to cool them.