Bi-Metal 12-Inch Fire & Rescue 14/18-TPI Reciprocating Saw Blade (2-Pack) 12" Auto-Dismantling, Fire & Rescue Reciprocating Blades Perma-shield coating protects the blade from heat, gumming and corrosion. 1 Inch Wide body for straighter cuts with less vibration For Cutting Through Metal between 3/32" and 5/16" Includes (2) 12" Bi-Metal Blades