Hello I am new to this site and to knife making, I always wanted to make a knife by my self but i dont really have a way to forge metal so for my first knife I thought I will use an old circular saw blade and thats what I did and now comes the part of heat treating and tempering. I know I can temper it in the oven until straw color but i have some problems with heat treating, i made my self a little charcoal furnace out of an empty helium tank and a air mattress pump(I will include a pic), it gets hot enough to heat the blade really well but after quenching it in oil the blade its in really bad state, it was nice and smooth when i put it in and now it has like little valleys, looks sort of like a map thats the only way i can explain it. is it happening because of the charcoal touching it or is it because the metal is not really the best quality??? any advice will be much appreciated, thank you
Piotr Kantorowicz changed their profile photo
