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Not that I am aware of. There are diamond files, but even then, filing steel at 1 rockwell hardness is going to be a chore, and might still oook ugly because initially, your cut is going to be so...

Yes, well that doesn't exactly qualify as DIY material :)
With a pro tool like that it certainly looks nice!

On some you could add them. Tangs of old sheffield azos can often be drilled or filed.
On solingen razors... not so much. You'd destroy the drill or file.