Precision machined parts are very practical in real life. Why? Because when a machine is working, it needs very good parts to maintain the normal operation of the machine. Then the precision part is a good choice. Many ordinary parts will have problems such as rust and broken when they work, but if you use this precision part, it will almost never appear like this, so that this precision part in real life should be a good use of parts.
We can't know what kind of state will be developed in the future in the parts industry, but I'm sure that in the future, the industry of this part is surely going in the direction of this precision part. The requirements for equipment and the like will certainly be higher and higher. At this time, precision parts, like precision machining aircraft component will help us to improve the quality of our machine's work.