Step 7: Flattening the Back

All of that sharpening you've done so far has created a little burr on the back of the blade edge. If you run your finger up the back of the chisel, you'll feel it when you get to the edge.

To get rid of that burr, you'll need to flatten the back of the chisel. To do this, start with the 800-grit stone. Lay the back of the chisel against the stone and make several passes on it. The chisel must lie completely flat against the stone.

It doesn't matter how much of the back you place on the stone. You only really need the very end flattened, but the more you have on the stone, the easier it will be to keep the chisel flat.

Do several sets of passes as you did with the blade, moving up through the 4000-grit stone.

There. You now have a finely-honed and powerfully useful tool. Now go to this instructable to see what you can do with it!
dent2443 years ago
Barbers and knife makers take off the burs by rubbing it against a strip off taught leather, maybe that may be better for keeping the bottom flat and removing just the burs
wa7jos4 years ago
When you get your chisel where you want it in the guide, score a mark across the face of the chisel at the base of the guide. This will allow you to quickly find the right spot the next time you sharpen.

I use the Veritas sharpening jig. It has a roller on the back with an eccentric cam. Just turn the cam 90 degrees to raise the chisel up 1/2 degree for the micro-bevel step.

Once you get your chisel sharp, it is usually only necessary to hit it with a few strokes of the finest grit to "tune it up".

offseid (author)  wa7jos4 years ago
Excellent, thanks for your comments making this Instructable even better!