Neilsen Masonry Reciprocating Saw Blade For Concrete Brick Used for cutting in a wide range of soft stone products such as clay bricks, joints and autoclaved aerated concrete. This is useful when replacing old bricks, when adding extra isolation material or when removing part of a wall. Universal Shank featuring long clearance makes these blades compatible with most reciprocating saws (power>1000W) Anti-Kick Back Design reduces tearing and increases operator safety Longer operational life due to high quality and extra large carbide teeth Carbide Typical cutting applications: Aerated concrete Concrete Block Brick Low Aggregate Concrete Masonry Abrasive Materials.