5 Pack, 6″ 10 TPI, Bimetal Reciprocating Saw Blade, Reinforced Teeth For Increased Durability, Anti-Stick Coating Reduces Friction, Matrix II Steel With 8% Cobalt For Maximum Durability, Raker Teeth Minimizes Vibration, +5&degree. Hook Angle For Fast Cuts Through The Toughest Materials, & Tough Flexible Body Resists Breaking, For Cutting Wood, Including Nail Embedded Wood, Composition, Cast Aluminum, Plastics, Light Gauge Non-Ferrous Metals & Fiberglass.