Universal clamp style knurler - videos

Universal clamp style knurler. By Doc's Off Topic.

30:50 video:
https://www.youtube.com/watch?v=wbKMpZKX9l4

26:49 video:
https://www.youtube.com/watch?v=5uCsLcNErPQ

1:04:27 video:
https://www.youtube.com/watch?v=Hx3WguGCfdE