For use with reciprocating saws with 1/2 inch universal shank systems. The S 1241 HM Endurance for Aerated Concrete Reciprocating Saw Blade delivers ultimate blade life with fast cutting in special materials. Its ground carbide teeth are designed for cutting highly abrasive mineral-based materials. Moreover, the blades very large tooth pitch (8.5 mm) and side-set teeth provide rapid cutting results, while its wide body (22 mm) and extra-thick gauge material (1.5 mm) provide maximum stability. The blade features a carbide tooth strip, which is welded on a highly elastic carbon steel body with Carbide Technology, enabling cuts in even the toughest abrasive materials such as aerated concrete blocks. Its long length of 300 mm enables a cutting capacity of up to 250 mm.