Step 5: Turn the Hook
Next, move the card scraper so that it just overhangs the edge of the workbench. Place your burnisher upright, against the card scraper, then tilt it a couple degrees toward the card scraper. Then push the burnisher forward, applying pressure to the card scraper as you move along, from front to back. Do this one to two times, and then use your fingernail to feel all along the new burr.
If your fingernail catches, and even flakes off, then you know that you have a properly turned hook. If part of the edge catches your fingernail, but other parts do not, then just return to the non-cutting sections and turn the hook more on those sections. This is where my method differs from others that I’ve seen: I turn the hook by feel, rather than just hoping that it has been turned. This is what your edge should now look like if you’ve done both sides:
Repeat the process on the other two sides, and you will have four cutting surfaces that will do an excellent job in smoothing the areas with difficult wood grain.
What tips do you have to successfully sharpen a card scraper? Please share your comments at the bottom of this page…