Century’s Contractor Series Recip Blades lasts 10X longer when compared to standard carbon alloy blades. Unique nitro hardening process for optimal strength and blade life. Cobalt matrix teeth are fused to a flexible shatterproof shock absorbing alloy backbone for rugged cutting. 1/2″ universal shank fits all popular reciprocating saws. 4″ overall length. 25-PACK

• Lasts 10X longer when compared to standard carbon alloy blades.
• Unique nitro hardening process for optimal strength and blade life.
• Cobalt matrix teeth are fused to a flexible, shatterproof, shock absorbing alloy backbone for rugged cutting.
• 1/2″ universal shank fits all popular reciprocating saws.