>>627050
I'll probably buy a flat blade to trim text blocks. Picrel is a blade for an auger ice drill like this one: https://www.outdoorlife.com/uploads/2022/01/12/eskimobitnew.jpg
The blade itself is dirt cheap, only needs to be sharpened and a handle attached, see video
https://youtu.be/uM3E1GFaYzE
Then it can be used as a plough to make perfect cuts. Alternatively, knife + sandpaper seems to be viable.