Metal lathe. By Polishing Time.
12:00 video:
https://www.youtube.com/watch?v=Jlx6KHvkRKk
12:40 video:
https://www.youtube.com/watch?v=fKsOhZ7r6hE
9:06 video:
https://www.youtube.com/watch?v=Yb8QCjm8t6A
13:56 video:
https://www.youtube.com/watch?v=byLMbi1AFTg
10:30 video:
https://www.youtube.com/watch?v=uVyr3wG0Y9c
