Dovetail Guide with Magnet Holder

These are guides similar to what you get on amazon with magnet holding your saw blade while cutting. I tested them with my Japanese handsaw and it works very well.

The Magnet slow is 6.2mm wide and 32mm length and 32mm depth. I used these as magnets: https://www.amazon.com/dp/B0CHRW74MX, but it should fit smaller magnets as well.