The Mizzy wheels do work until the cheap piece of junk dremel tool I purchased burned the motor out. I have to get a new one. I tried everyone's idea of knapping. I think I am hitting to hard, and too far back on the flint. I will give Roundball's idea a try.

I have also turned my flint every so often and it does seem to add a lot of life to the flint life. Good thing I buy my black english flints in bulk. I sure waste a lot of them...