I have decided to give card scrapers another try. Watched dozens of videos on how to put a hook on one. I was born with a very recessive sharpening gene, but a hook on a scraper seems simple enough, but no hook. First I use a file to square and flatten, then a diamond stone to smooth edge and both sides, then burnisher to pull metal. then burnisher to try to make hook. No hook If it makes any difference, Bahco scrapers Crown burnisher.

Thanks Mike