Reciprocating saw blades metal cutting teeth contain 8% cobalt, heat-treated for high hardness and sharpness.
14/18 tpi bi-metal reciprocating saw blade is designed for optimal performance in metal cutting applications, made of M42 metal with 8% cobalt in the teeth and D6A hard alloy steel in the body. The blade thickness is only 0.04 inches, and the heat treatment hardness is 65-68 HRC. The bimetallic reciprocating saw blade used for metal cutting maintains excellent cutting performance and hardness under extreme high temperature and pressure.