Thanks everyone, I heated it to non magnetic and then let it cool it the furnace for a couple of days. I noticed the cracks while I was grinding the blade profile, I think that they were already there or it happened when I was normalizing the file. Like I said it was a cheapo file I didn't want...
Well I'm still trying to figure everything out, but this one just ain't gonna make the grade.... Oh well it sure is good therapy :biggrin:. I didn't want to waste a god file so I used a cheap who knows were it came from one. I did like the way the Wharncliffe style blade turned out. The cracks...