I was one of three working on replacing the R8 collet key in a Bridgeport belonging to a friend.
I was in a position to take lots of photos (and mostly offer suggestions), so I've built a web page showing the process.
I opted to not use names in the page to maximize privacy.
The "Poultry Pilferer" refers to his favorite saying "There is no chicken better than a stolen chicken." when selling parts and equipment from his previous employer. (He's retired, and the employer is using him to move surplus equipment both locally and on eBay as they shift to new projects.)
Enjoy, DoN.