Steps on how to get a metal saw blade, 8 logs for 4 charcoal, 4 metal ore with the 4 charcoal to make 4 metal, turn the 4 metal into 2 metal plates, then 2 metal plates with a stone to make the metal saw blade.
By the way, the "recipe" that uses the metal saw blade, produces 2 more for the output, for instance, 1 log will become 6 planks, 1 plank will become 6 poles.
