I completed the cooper's driver. I'm happy with how it turned out. I only need to oil the handle and it'll be ready to be used.
I only hardened the working end so the struck end will be less likely to chip or damage the hammer that strikes it. I tempered it pretty far back so that it's tough since it doesn't need to be super hard since it will only be used on mild (softer) steel hoops.
I wasn't sure how much to file the groove on the working end (the peen-like end), so I left it how it is now figuring I could adjust it later.








