Craftsman Dremel Tool Troubleshooting Bad Motor Winding Repair, Brush switch check

My USA made craftsman dremel tool finally died. I've had this for over 25 years. Normally I would suspect a bad switch or brush. After closer look I noticed one side of my motor winding was open. I was able to pull the wire back up and solder it back to the connector. Back in business.

DeOxit
https://www.amazon.com/gp/product/B0000YH6F8/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B0000YH6F8&linkId=5cd8088a019d4f2f3db0652a16f67ca7

Multimeter in this video
https://www.amazon.com/gp/product/B07P7V3YNT/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07P7V3YNT&linkId=68bcc1aa9ef52da72030fd0f73b43316