Diablo, 25 Pack, 6'', 12TPI Wood Reciprocating Saw Blades, Rip Through Nail-Embedded Wood With Gently Applied Pressure, Leveraging Patented Variable Tooth Technology, Bites Into Lumber To Make Quick Work Of Teardowns & Demolition Projects, Bi-Metal Construction Gives The Blades Utmost Durability, Perma-Shield Coating Reduces Drag For Smooth Operation In Rugged Applications.