Found this YouTube Video where This Old House toured a Porter Cable Plant. Norm got to see a Portable Saw being made. I posted this as seeing a Motor being made from scratch will help you understand the CUT MOTOR as it has the very same parts with the exception of the Shaft Magnet and Flex Shaft slot. Often asked... Why does my Armature have metal missing.... You will see it is part of computer balancing.
Enjoy https://youtu.be/vffbbb4smAU
AL