Lenox 20550414R 414R Metal-Cutting Reciprocating Saw Blades, 4-inch, 14 TPI, 5-Pack

Power Blast Technology Increases Blade Life
High speed blasting along the cutting edge strengthens the blade to reduce breaks and increase durability
Long Blade Life & Increased Versatility
Patented T2 Technology reduces cutting forces on each tooth and optimizes chip removal to allow efficient cutting in the widest range of materials
Advanced Metal Cutting Toothforms
Patented metal cutting TPIs provide faster and more efficient cutting in the widest array of metal construction materials including Unistrut, angle iron, black pipe and more