Dewalt, Dw4809, Reciprocating Saw Blades, Tpi, Cutting Accessories, 8 Inch, Bi-Metal 8" 14 Teeth Per Inch Straight Back Bi-Metal Reciprocating Blade The Dewalt 8" 14 Tpi Straight Back Bi-Metal Reciprocating Blade Is An Extremely Durable And Useful Attachment. Use This To Increase Your Efficiency And Decrease Your Work Time. Superior Build Quality Means You Will Be Using This Bit For Years With Minimal Wear And Tear. A Must Have For Any Professional Or Do-It-Yourselfer. Features: Patented Tooth Design Utilizes Sharper Tooth Geometry For Faster Cut Rates - Aggressive Shank Angle Increases Tooth Contact, Maintaining Cutting Speed As Blade Wears For Longer Blade Life - Specially Formulated Anti-Stick Coating Minimizes Friction And Gum-Up For Smoother Cuts - Specifications: Blade Type: Straight Back - Blade Length: 8" - Teeth Per Inch: 14 - Dewalt Is Firmly Committed To Being The Best In The Business, And This Commitment To Being Number One Extends To Everything They Do, From Product Design And Engineering To Manufacturing And Service.