American Saw & Mfg 24903, 2 Pack, 6", 18 TPI, Laser, Heavy Metal Cutting, Reciprocating Saw Blade, Laser Blades Optimize Performance In Heavy Metal Cutting Applications With A Thicker (.042) & Wider (1") Blades To Minimize Whipping For Straighter & Smoother Cuts, Laser Blades Lasts 45% Longer Than The Leading Competitor Blades, Unique Blade Geometry Reinforces Traditional Weak Areas, Creating Stronger & More Durable Blades, Constructed Of Shatter Resistant Bi-Metal Blades.