It is not allowed to use motorized tool setting, and the tool setting should be performed manually. When reversing the workbench, the reversing handle must be stopped at the middle position before reversing. Direct reversing is not allowed. When milling keyway shafts or cutting thin workpieces, it is strictly prohibited to damage the indexing head or work surface. When milling a flat surface, it is necessary to use a cutter head with more than four cutting heads, and select the appropriate cutting amount to prevent the machine tool from generating vibration during milling.

Milling refers to the use of rotating multi edge cutters to cut workpiece, which is an efficient processing method. When working, the tool rotates (as the main motion), the workpiece moves (as the feed motion), and the workpiece can also be fixed, but at this time, the rotating tool must also move (completing both the main motion and the feed motion). Milling machines include horizontal or vertical milling machines, as well as large gantry milling machines. These machines can be ordinary or CNC machines. Machining using a rotating milling cutter as a cutting tool. Milling is generally performed on a milling or boring machine, suitable for machining flat surfaces, grooves, various shaped surfaces (such as splines, gears, and threads), and special shaped surfaces of molds.