Step 1 - Buy a can of Kasenite you will need it to harden your frizzen. Basically just heat it till its bright red (about 1650F )with a torch, spoon the compound on the face of the frizzen. It will begin to bubble, and boil, after a few seconds it will simmer down and look like black mush.

The longer you keep the part at a bright red, with the compound coating it the deeper the penetration. I tend to play the tourch across the back while lightly spooning kasenit ontop till it appears to bubble off. I do this for a few minutes then air cool it, and then drop in the cold water.

You can also dip the part into the compound and swirl it about to get both sides coated if you like.

Repeat this process twice letting it air cool each time and scrapeing the gunk off with a wire brush between coats. ( I place it in a vice for this whole process heating the frizzen from the back side) The frizzen has been annealed by this process and is too soft for use.

For a third time I heat it up as before, coat again then drop it into clear cold water to harden it. It will make a popping 'bang' on hiting the water.

Its now tempered, and should be quite hard. Brush the gunk off, and polish the face up till its shiny. Electric wire wheel brush works fine.

You should not be able to scratch or 'cut' the polished side with a file. If it does its too soft, and you will have to heat to bright red again and redo step 3.

Its now hard enough to try in your lock. Mine usually sparks much better ( many more white yellow sparks )after this treatment, using the same flint as before. If the flint slides across the surface without sparking its too hard, and you need to draw the temper down a bit. Just heat the backside slowly till the face turns a light straw color ( 440F )then let it air cool. Try again, it should spark. Id say most of the time you dont get sparks its because the frizzen is not hard enough.

KASENIT is a hardening compound you can find it on Tracks page, Dixie sells it, or try www.McMaster-Carr.com the part# is 3204K1 and runs you 10.46 a pound. Just bought some this week :)