Which is more difficult, turning, milling, planing, boring or drilling?

The lathe worker starts turning from the blank, that is, to ensure his own tolerance, but also to consider leaving allowance for the next working procedure. He can not only pick and buckle the inner hole on the end face of the outer element, but also cut the groove, so as to catch up with the garden and turn it into a sphere.

Turning, milling, planing and grinding are the four basic machining methods of mechanical processing, and they are important components of parts processing. They mainly complete the processing of parts so that they can be used in the assembly of mechanical equipment. Including turning, milling, planing and grinding, different parts need different processing methods. For example, shaft parts generally only need turning, but some parts need two or more of them to complete the processing of parts.