Bosch REDM9X2 Edge Blade for Metal Demolition (pack of 5) 9 In. 8/10 TPI Bi-Metal blade for metal demolition Turbo-Teeth technology  lasts up to 3X longer than standard reciprocating saw blades Engineered for extreme cuts  delivers excellent cuts during high-performance applications Precision ground blade  starts sharp and stays sharper Swiss-made blade  constructed with premium materials for reliable performance