For use with reciprocating saws with 1/2 inch universal shank systems. The S 1141 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 thick gauge material (1.25 mm) provides high stability. The blade features a carbide tooth strip, which is welded on a highly elastic carbon steel body with Carbide Technology for cuts in even the toughest abrasive materials such as aerated concrete blocks. Its standard length of 225 mm enables a cutting capacity of up to 175 mm.