This seems like a reasonable choice, but man you really need to do this with a CNC mill. The craftsmanship is not there.

(author) If anyone around the Bay wants to let me use their CNC mill please reach out! I have lots of things to chamfer.

Here's what it looked like freshly after filing fyi: https://kentwalters.com/posts/public/IMG_7438.jpeg

That's like telling a punk to use a proper sewing machine for their jacket patches.