Iam reposting this thread . This is by far the hardest file work to do I royally f it up so Im call this next one Barb wire. I did one practice on scrap and it worked really good then tonight I spent 90 min to screw up a knife and a really nice one all hollow ground and ready for heat treat . MAN thats sad. I dont know what i did wrong. Back to the drawing board. kellyw