knife guard slot punch

[Karl_H]

This video was initially published 4/9/19 with an ending "To be continued..."
I went to his YouTube channel to find part 2 and there was no part 2 to be found.
On 10/23/19 he posted an interesting video adapting a cylindrical ceramic blade as a "Knife Guard Slot Saw."

My guess is that the punch did not work as well as he thought it would, so back to the drawing board.

I am contemplating a project that would require multiple pieces made from thin brass plate, so I am book marking this punch idea as a possibility.
Thanks.