5 Piece, 6" Long, 5 Teeth Per Inch, Ax Super Sawzall Blade Pack, Wood, Nail Embedded Wood & Demolition Blade, For Plunge Cutting Into Wood & Nail Embedded Wood Without Bending Blades, New Nail Guard 5 TPI Pattern For Faster Cuts & A Unique Design That Protects Against Tooth Fracture, New Fang Tip Bites Into Wood On First Contact For The Fastest Plunge Cuts.