Contractor series cobalt bi-metal reciprocating saw blades. Lasts 10x longer. Unique Nitro hardening process for optimal strength and blade life. Fused cobalt teeth. 5% cobalt teeth fused to flexible, shatterproof body for rugged cutting. When compared to standard carbon alloy blades. 1/2" universal shank fits all popular U.S.A. reciprocating saws. Thin sheet or tube, ferrous and non-ferrous metal, conduit.

Product Features:

• Recip blade cobalt bi-metal. For use on hard and soft metal, thin sheet or tube, ferrous and non-ferrous metal, and conduit.
• Contractor Series Cobalt Bi-Metal reciprocating saw blades are designed for contractor grade applications
• Each blade consists of cobalt alloy high speed steel teeth electron beam welded to a lower alloy backbone provide a flexible, high performance blade
• For thin sheet or tube ferrous and non-ferrous metal and conduit
• Contractor Series blades have C66-67 Rockwell hardened teeth which operates up to 10 times faster than carbon alloy blades