Hey Colby, spark testing is really not a very good test to determine grade. All it can do is give you an idea about the amount of carbon in the steel.
It's certainly not definitive in any way. If you want to know the type of steel you'll need to send it off to a lab and get it tested.
I've also got a railroad track anvil if anyone wants it... Same deal!
I'm driving from my house out here near Terlingua on Sunday and going to college station. If you want either or both, let me know by Saturday, or they are going in the recycle bin!
Eh, you can possibly salvage it... Try thermal cycling it a few times, then re-quench it.
So heat it, till just barely below non-magnetic 3 times, air cooling till black between each heat. Then heat it till just over non-magnetic ( do this in the dark) it should be in the low orange side of...
Hey folks, anyone want a free grinder frame?
I made it a few years back and it works fairly well, I recently upgraded to a Reeder, and I don't have the space for two grinders.
It's just the frame, with a gas tensioning strut and tracking device. I'll post pics later. It's made of 2" thick...
Another thing to think about is building your own, if you've got the skills and equipment to do so. It can be significantly cheaper, if you don't count your time!
As with all things, it's cheaper to buy a quality product, if you value your time at a reasonable "shop rate".
Bottom line, if...
I definitely think @Lorien is on to something here. It's not about tools, it's about attention to detail.
If your finish sucks, but the design is good, you still have a good knife. If your design sucks, but you have an awesome finish, you've got a shiney turd.