ok so i'm making a Kunai for my nephews girlfriend. I am using O1 and wondering what i should be shooting for temperwise. It's made from 1/8" stock. it's 9" overall. the blade edge is 4 3/4". I asked if they were planing on throwing it. They said it wasn't planned on, but since i asked they want to be able to throw it now. I'm a little worried about my normal temper being too hard and the tip possibly breaking off
heres a pic
i was thinking of shooting for 55rc
thank you for your time and help in advance
Chris