What do I need to know to make a good knife from a 7 1/4 or 10 inch saw blade? Does it have to be heat treated after shaping? Help!

I did no heat treating on this one. I cut it and ground it slowly, careful no to get it hot. It was hard to put an edge on it, but it holds an edge very well.

Kenny why in the world would you want that antler knife I made when you have this? RGk kenny hit it on the head SLOW is the word and dip it water alot as you grind.<><