https://medium.com/@mayukofujino/mar...n-72702d8bde28
I googled the kana and found these pages which displays the circle cutters and other stencil cutters.
https://www.osugi.co.jp/hobby-tool.htm
https://www.osugi.co.jp/hobby-toolset.htm
Pattern punching tools
https://www.osugi.co.jp/dougubori-dougu.htm
Of course the true craftsman would make his own tools from mild steel blanks, and then harden them, rather than purchase them ready made