You probably heated it too much and too fast. Orange-red is the other end of the heating scale. Heat with a smaller flame. The slower the heating, the better the control and the better you will see the colors. I use an alcohol lamp for bluing.
No the rings are not broken.
Remove both rings by spreading the slot with a screwdriver and they usually pull off.
Remove screw 1 then screw 2.
Gently tap the spindle out from the direction of screw 1. Do not use a metal hammer. If you don't have a rubber or nylon hammer, use a piece of wood...
Try using a clear epoxy with acrylic paint / stain.
Also, take a look at Efcolor though it now seems to be not so widely available.
After our recent punch up (literally) between the Indian army and the PLA at the border at Galwan, a lot of goods from China are now unavailable to us in India. Good riddance. This means no ebay purchases, no banggood, no aliexpress etc.
I'm giving Indian manufacturers for ER collets a keen...
Thornton's seems to still make new cutters for clock wheels and pinions. So does Bergeon I think. Not cheap at all.
And then there is the great auction site; either for used cutters or new ones made in china.
I agree. I picked up a Rivett lathe (no collets, drawbar or tip over tool rest). What can I say, the price was so low it would have been a crime to let it go. It was dirty and caked in crud. Headstock was stuck. Tailstock was stuck.
Soaked everything in kerosene for a couple of days then a...