Sharpening common items on concreate is something you do when adults aren't looking. While Kathy sounds like fun, she also sounds like an adult. I recommend you conceal your improvised tool/weapon-making from her. This is usually implied with a dare, but I'll mentioned it now as it seems you might not know the rules as well as I thought. Is "Danger" an honorary title?

Because such a name cannot be earned without some level of concealment.

Thanks Keith! I've been wanting to make this jump for a long time. I have a small stock of tool steel for making parts that will require heat treatment. Might as well try a razor first. The muzzle brake for my rifle will be even harder.
Thanks Gary! I'm a little worried, but I find these projects go better when I commit myself by telling people what I'm about to do.
Thanks Jim!
Thanks Joe!
Thanks Patrick! This forge has a removable burner I'm hoping I can connect to a foundry as well. I have a 2 year supply of aluminum cans I need to recycle. Can I add aluminum casting to my list?
Thanks Tim! All the comments sure make this adventure fun. I need to clarify. I am starting with an annealed 1095 knife blank. I'll use my CNC machine to cut the outline and rough cut the blade. Then I will precision lathe mill and heat treat the steel before grinding. The oven used to heat treat steel is called a forge, but I won't be hammer forging this time. That's a little much to bite off on my first try.
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