Turning small parts is nothing new for many machine shops. Industries like automotive, aerospace, electronics, firearms, and medical are pushing the envelope when it comes to small-part production. Typically, any application requiring a workpiece smaller than 1 in. dia. is considered small-part turning.
Micromachining, on the other hand, is classified by part diameters that are too small to be fixtured using a standard collet. In some instances, this could mean parts that are 0.1 in. to 0.02 in. dia. all the way down to the size of a human hair, depending on the equipment.
For shops looking to take on small-part turning operations, there are a number of things that can be done to ensure success.
Read more HERE: https://www.canadianmetalworking.com/canadianmetalworking/article/cuttingtools/fundamentals-of-small-part-turning