cnc milling difference,what's the difference between cnc milling and cnc turning? - LinkedInJan 19, 2015 . Custom machine shops offer a valuable resource to businesses and individuals. Why? Because they are custom. If you need something done.cnc milling difference,What is the difference between a CNC router and a CNC miller .They do pretty much the same thing. A cnc mill will usually be smaller and much more heavy duty; mills are usually built to cut metal. A cnc router will be larger.