re: card scraper sharpening

Here is a couple more pics. The card holder slot is straight across the top and there is a slight bow in the bottom of the slot to allow the card to bend when the screw is tightened. Also pictured is the burnisher and file holder. The angle for the burnisher is 15 degrees, and the angle for the file is 45 degrees. The wood attached to the file holder allows you to secure it in a vice. I was told the file must be a mill file.