With encounter milling, the chopping action mostly takes place at the tip corners with the milling cutter. Encounter milling is used to cut flat surfaces into your workpiece or to cut flat-bottomed cavities. Arbor: Arbor is a form of Instrument adapter (or tool holder) that supports introducing a aspect cutter https://milling-machines-canada90009.madmouseblog.com/7326687/machine-milling-tools-fundamentals-explained