It's impossible to get a sharp edge on a chisel or plane if the back of the blade isn't flat. If you're using glass and sandpaper, press the back side of the blade against the sandpaper and move the ...
If your knives could do with a sharpen or you would prefer an easier way to grind and edge without the need to use a whet stone, you may be interested in a new electric knife sharpener aptly named the ...