Do LENOX bi-metal blades contain Cobalt? Mike October 30, 2020 05:33 Updated Yes, LENOX blades are made out of M42 tool steel which contains Cobalt as one of the elements that makes up the steel. Related articles How much tension can a bi-metal blade handle? What grades are the carbide blades available in? What is the finest tooth pitch for carbide band saw blade? Which blade is good for cutting induction hardened materials? Which blade do I use to cut meat? Comments 0 comments Please sign in to leave a comment.